I was thinking about this last night/this morning at 4am... I don't see how it gets off the ground for the teams involved, save for 1. I'm writing out my thoughts so that holes to be picked in them in case I am missing something.
The charge against us relates to the P&S calculation for 2021/22. It's over a 3 year period so relates to seasons: 21-22, 20-21, and 19-20. (A fourth year of 18-19 can be added in for COVID).
My reading of the thrust of the decision is that it focuses on the breach and reasons for it in 21-22 (Gylfi - August 21, Ukraine/Russia - Feb 22 etc).
Moreover, the breach occurred 21-22 because the other years submissions have not seen us charged i.e. we were not charged for 20-21 and the 2 years before that.
The teams who applied in the proceedings to be joined are: Leicester, Southampton, Leeds, Forest and Burnley.
Only one of those teams was relegated in those years - Burnley in the 21-22 season.
The commission noted at para 118 "The position in the subsequent years is a matter for those years".
They'd also have to show there is no break in causation - Leeds finishing 17th that season could be one - even if our implied but intangible sporting advantage could be demonstrated as causing them loss, how can they show that absent it they could have got 3 more points to overhaul Leeds? Yes, if we lost 10 points that season, they would have stayed up, but is that our fault/wholly our fault that it wasn't implemented for almost 2 years?
In addition, any loss that they could show would only last while out the PL which is only a year.
I'm more convinced that Leicester and the others were on a 'fishing expedition' for documents and information useful in the subsequent years. Leicester finished 8th in 21-22 - what loss did us finishing 16th cause them that they can prove to the required standard?