Another thing to consider - what happens if next season can't start on time? I really think any league calling it now is jumping the gun. There's every chance that next season can't be completed either, in which case, might as well just get the one already in progress done, however late it is.
Well, indeed, there's no point the broadcasters demanding that every match they've paid for takes place this season if that then means it runs on so long it won't be possible to play the required numbers of matches next season.
It's going to be a question of give or take. I can imagine 2020/21, when it gets underway, being truncated, and it may be that every team just plays each other once and then they invent some play-off system or a Cup to run through until May and then get back on schedule (I think that's what Premiership Rugby are considering for when they return). As long as the structure of the season and the rules are clear at the start of it, there shouldn't be a problem - which is why it makes more sense to me truncating that season than ending this one. The broadcasters won't get as many matches as they expected, but they'll be getting football and given how long it's been, they'll be grateful for that, as will the fans. As long as they're playing it doesn't really matter what the structure of the league is.
I was reading about 1975/76 in Scotland the other day when they restructured the league and it meant the second tier had fourteen teams, and they had to ponder how to do it because playing each other twice would have made too short a season, playing each other four times would have made it too long and playing each other three times would have meant an odd number of home and away matches. In the end they decided everyone would play each other twice, which took them up to March, and then they invented a Cup to pad out the rest of the season. It didn't really work and the next season they changed it so everyone played each other three times, but that was the structure of the season and teams accepted it, and 1975/76 has a champion in the record books without an asterisk saying "But they only played 26 games". As long as there is a structure and everyone knows what it is, that's fine. As long as there's football.
If the format of the 2020/21 season is a bit weird, so be it. Everything's weird.