The way this will pan out in my view.Its an option but i doubt they will need to. Sky and BT's business model for selling their subscriptions relies heavily on PL football being a feature they can offer. Theres no way in my opinion they are going to rock that boat by demanding a full refund for missing out on 25% of the games.
Wait until mid to late May, Premier League finally realise BHCD or restart etc, playing this season next season etc all not happening. Season null and void.
Deal with SKY and BT that they can show 25% more live matches next season, probably including some 3.00pm kick offs and probably more matches spread out over the week.
They get more revenue, everyone's happy. Clubs take a hit from reduced attendances, but better than bust.