How so given the RFL fought tooth and nail to rescue the Broncos and install them as Harlequins before turning a blind eye to their struggles through two licensing rounds.
They could not be more uncomfortable with how it's panned out so far and could be even more uncomfortable if the demise of the London SL club affects the "fantastic RL grass roots community"
Times are different, people in charge are different.
I just get the impression that the RFL currently see the Broncos in its current guise as being on a road to nowhere, but that they (the RFL) have neither the desire or the financial clout to take a greater stake in the club. Basically Broncos need to sort themselves out, and if it requires a drop to the Championship and the move to a more suitable (ie smaller) stadium then so be it.
I would have thought Leeds Carnegie RU side are a good case study. Trying to push pro RU in an RL/ AFC city, they spent big time when they were last in the Premiership and basically got relegated and ran up some important debts. Granted their crowds were a bit higher than Broncos have been getting of late, and there are no doubt favorable terms for their use of Headingley.
Since relegation from the Premiership, Hetherington and Caddick have taken the opportunity to rework Carnegie top to bottom, they have binned the expensive contracts and are assembling a squad made up from the academy and the wider Yorkshire region. It has been painful, but they have a squad mainly of local players who are slowly gelling as a squad, and who were in the play offs for promotion this season just gone. Give it another season or two, and Leeds Carnegie could well be back in the Premiership with a majority home grown squad.
I am yet to hear anyone suggest that there is not a pathway to the RU top table (so Leicester, Saracens, Bath, Gloucester) for talented Yorkshire RU players just because there is not a Yorkshire club in the Premiership. There are stacks of northern born and bred RU players who have had to move to the South East/ West or East Midlands to play top flight RU, why should it be the case that no-one from the South East would want to move to Leeds or Wigan to play the sport they love? Where RU has it right and RL has it less so, is that top RU clubs are more active in scouting talent from the lower leagues than their SL counterparts, particularly when it comes to forwards: the RU Championship is seen as an excellent breeding ground for tough gnarly forwards.
As for the grass roots development in London, I am really not sure how much of that can be directly attributed to the London Broncos certainly in north/ east/ south east Greater London. Granted they might have some impact in the triangle between the M3/ A3 but am not aware that they do a massive amount there (I stand to be corrected on this).