It's not really irreversible, it's irreversible by consensus. So if there is a consensus to roll back, it can be done. And in fact it has been done in the past

https://levelup.gitconnected.com/how-ethereum-reversed-a-50-...

It is done only if the supreme leaders decide to push for a fork. They did it once, and it is not clear what criteria they used to do so.

Should we expect that the core dev team will push for a fork again?

If so, what is the threshold for future scams? 100M? 10? If I get scammed of $100k don’t I deserve my money back?

Are we going to create a fork for every dispute, or are we going to just ignore all disputes?

The whole thing does not work.

Seems to work. Everyone can decide for their own if they want to use the fork or not.

Like I say, it's a consensus. Remember Ethereum Classic? Well, that network was powered by those who didn't agree with that rollback.

Isn't it better to make up your own mind than to have some 'leader' decide for everyone? Welcome to decentralization.