for me Messi being suspended for 2 games is not a very wise decision. Because after all, Messi's contract with PSG is almost up, just waiting for this season to end. So there should have been a little leeway in the rules for Messi. And even Messi has actually wanted to visit Arabia for a long time but always failed due to schedule clashes or something like that. and Messi went to Arab yesterday because as a tourism ambassador he has an obligation to be there.
And about Messi going to Al-hillal with a big contract offer, I think nothing has been decided yet. Well, it looks like a decision will be given when the season ends. I prefer Messi to be at Barcelona. but if Messi chooses to go to the Arab League then it doesn't matter because that is his career. and I still like his style of play wherever he plays.
I think they do not really care, I mean PSG is good enough at this position right now that they can end up with wins enough to be the winner and they do not care about Messi not being really worried and leaving. They already know that if Messi wants to stay then he can stay, if he is leaving then he is leaving for sure, this is just a punishment for show, so that other players can see even if you are Messi, if you do not follow the rules the team setup, then you are going to end up with trouble and you shouldn't do that.
Messi will most probably leave anyway because the offer is huge and I think it's obvious already, he left even when team said he can't and that means he wanted to make sure his decision was right, so PSG did the right thing.