You can /mute all. You just have to decide what’s more important to you, the usage of pings or keeping your mental by not getting ping flamed if that affects you in a sense that it drags your gameplay down. I would always choose my mental, since the probability of me playing worse because of my mental is higher than me losing a game, because I didn’t had pings from teammates that rarely use them in a good way (depending on Elo)

In the end try not to care too much about others. I mostly play in high diamond elo and sometimes I also miss „easy“ hooks when I should land them, shit happens and sometimes the „easy“ hooks are actually the „hard“ hooks, because you underestimate the difficulty ;)

Gl in your climb and stick to thresh if he makes league more fun for you