When it comes to sporting advantage, I'd be interested to know what the losses were for other teams in that 3 year rolling period. Due to our reduced limits, we may well have the smallest losses in the league and still be in breach. Even our fellow promoted teams, Bournemouth and Fulham, were both afforded more wiggle room than us due to previous top flight campaigns.
It would be hard to say Forest gained a sporting advantage whilst having less to play with than anyone else. At worst, we reduced the disadvantage by breaching PSR.