Yes lots in that. I mean if they are going to only provide financial sanctions for the clubs that tried to break away, it will be very hard to do anymore more to any team, from a legal standpoint going forward. Even if you can establish that team has broken rules consistent with European law (which obviously they couldn't do with City). But even if they had have done, any club will the argue proportionality and will have enormous success with that.
Any impartial court will be able to see any effort to punish someone for what is in essence an accountancy error is far less serious than fundamentally trying to steal from the game and destroy it, and will likely view UEFA and the too clubs as akin to a modern day mafia and rule against them. So I suspect you are right, the days of sanctions are gone, and I mean Ancelotti's outbursts were very telling, as yet I have seen no pushback from anyone involved with UEFA at all, which is quite surprising, but kind of shows where they are with things.
I do get the final point, and I would do the same, but you do wonder if Moshiri really trusts Brands and to a degree Ancelotti currently?