This isn't just a dodgy run of form or 'any issue' though, it's clearly much more than that.
If he wanted to stay at the club and sign a new deal, I think 99% of the fans would be completely supportive regardless of the bad run.
However, this is ten games without a win including a couple of shocking results. It's a refusal to adapt his system despite mounting evidence that it simply doesn't work without Munoz. It's repeatedly criticising the owners publicly. Announcing that he's leaving the club the day before a game despite criticising the board for the Guehi timing being a destabilising factor.
My ideal outcome here is that they patch it up and he stays. But it feels like at the moment he is almost trying to force an early exit and, if so, I don't think it is unreasonable for fans to feel pissed off.
We are within our rights to want people at the club who want to be here and, frankly, at the moment it seems pretty clear that him and Mateta want out which is very disappointing.