1. To rest or not to rest, that is the question. Last year Saints steamed through the campaign with their best 17 each week but then come a cropper in the two knock-out games that counted. Although coach Justin Holbrook does not believe that fatigue played a factor in either of those big semi defeats, there has been a significant change of tack from the Saints boss this term.
In some ways leaving out Lachlan Coote, Tommy Makinson, Jonny Lomax, Alex Walmsley and Zeb Taia - a significant chunk of the brains trust, power and experience - was a gamble in London.
Given the lead at the top of Super League it was one the coach was willing to take - and team selected should have still been good enough to win.
But does the selection contribute to a mental clock off from Saints and have the opposite effect on the opponents.
You could imagine Danny Ward's team talk to motivate them...
But the episode does show that in planning week to week for a season that goes January 31 to October 12 that you are damned if you rest, and damned if don't.
2. Saints started well enough and led 12-0 in London, but then a combination of daft handling errors, forced passes and some ill-discipline allowed the Broncos to get their feet under the table. Once that happened Danny Ward's side was as dogged as anything in keeping Saints at bay, so credit to London for that.
With the ball Saints were poor, with too many telegraphed passes being easily read by the defence, with the team was forced sideways far too often.
It's only the second time this term Saints have lost - and the common denominator in both defeats has been the absence of Jonny Lomax. That probably says plenty of his often unsung contribution.
3. Saints' sheer will to win was almost enough to overcome those attacking frailties with Regan Grace's late converted try taking it into Golden Point. Given the way the game had finished plenty of the travelling support that erupted as Richardson's conversion sailed over would actually taken the draw.
But instead Saints' first taste of regular Super League Golden Point ended in failure when Louie McCarthy-Scarsbrook's spilled ball gifted the position for Morgan Smith to poke over a scruffy drop goal.
Ian Millward's once said that 'Draws were like kissing your sister' - and getting rid of them has been once of the innovations for Super League's new draw.
It certainly adds to the excitement, although there will be faults with it given can be a bit of lottery of who gets first crack. But it underlines that heads have to be switched on for those killer last plays.
As a training manual, everyone should look again at that perfect set, from play one onwards, in Saints' Grand Final win in 2002 that led to Sean Long's winning drop goal.
4. London loan centre Ryan Morgan punished his host club with two tries - including one that really should have been stopped.
In the past Saints have put clauses in loan deals to stop players playing against them, and although some suggest a similar clause should have been put in this time I reckon if you are a year long loan you should be allowed to play.
Saints should have been more aware of Morgan's strengths and weaknesses and dealt with it.
5. Saints took a magnificent following to London - with red and white leaping out from all four sides of the ground. That is a big effort to take such big numbers - especially with it being a work/school day on Monday and the London club really appreciated the atmosphere.
Just one small gripe. Greg Richards won the Grand Final with Saints in 2014 and always tried his hardest. Obviously he was moved on when it was clear Saints had other front row options coming through, so it was probably a bit harsh to taunt him with "used to play for a big club". No doubt he used it as extra motivation to get a bigger shoulder into some of those tackles.
6. London's Ealing Trailfinders home is not as well appointed as Fulham, Brentford, Charlton or Harlequins - and the travelling fans compared it, in colourful language - to Ruskin. But it a good little base for the club to build the 13-a-side brand in the capital.
On the field Danny Ward has done great in not just getting this team into the top flight, but being competitive up there.
Saints are the latest big scalp - and hopefully that news will help them bring in more spectators to complement the work rugby league has done boosting playing numbers in the capital.
West London has always been where the game has done best - going back to those early Fulham days, so hopefully Ealing can be a long term base.
There will be plenty hoping that London can stay up - and they are certainly heaping the pressure on Leeds and Hull KR above them.
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