In the 2020/2021 season, Atletico were champions, in the 2021/2022 season they entered the top three after Real and Barcelona, and this season they are only two points apart from third place, and it will not be difficult for them to reduce this gap. So I don't understand what you are talking about, what do you think is wrong with Atletico, they achieve everything you said, and apparently Semione is doing his job well since he is still in his post. With the funding that is available to him, the results can be said to be excellent.
Some fans just want to see their teams be champions back to back and constantly. It looks like the trajectory is not like that but down. First they were champions, then they were third, and now they are not even that even if they are close. This means if they finish fourth or lower that is a trajectory that shows worsening, like what if this year they are fourth and next year fifth? Will we wait for them to just get better?
Or just give them credit because they were champions a year before? Of course not, that is not going to be acceptable and that is why I believe that some fans want some changes that will take the team to a better place all over again.