Well ask Aston Villa fans if they're enjoying this season, or Brighton, or West Ham last season.
FFP rules aren't perfect, but I'm not going to shed tears for fans and clubs and owners who were 100% in favour of them when it helped them and now want them gone when it holds them back.
Also this obsession with debt is really weird, it only exists on bluemoon. Spend 5 seconds thinking about it and you'll realise that having a mortgage doesn't mean you're less financially secure than a renter. The important aspects of debt (like interest payments) have always been part of the FFP calculation.