There is no TV demand for second-division rugby and not really enough TV money paid for SL rights to support SL clubs and pass a chunk downwards.
But we still insist on promotion & relegation, so in order to stop the gap between SL and the Championship becoming too massive, the TV money for SL needs to be shared with clubs in the Championship.
Personally, whilst promotion/relegation is something I'd ideally want to see, I think we need to move to a licensing system, with SL as the only fully-pro competition, and the rest semi-pro to varying degrees.
No automatic promotion/relegation. Ideally licences to be issued on the basis of grounds/facilities; financial position of the club; actual and potential support. And running a reserve team would be a requirement.
There's always been arguments both for and against for each of promotion/relegation and licencing, but now the issue of less money in the game tips it toward licencing.
We cannot sacrifice the golden goose of Super League in a vain effort to help Championship/National League clubs.