mods can adapt, some mods also hide the diplomacy window by default (ex. ui party that I use), and idk how many players even know about diplomacy itself to see they can mute someone at all, meanwhile scoreboard is always there
confirmation "are you sure you want to mute, you won't be able to receive messages/pings from x player" also works to prevent accidentally muting someone, making it difficult to use is not the solution to it, muting should also only last for duration of the match btw, not become FAF-wide mute like foeing is
maybe pings and chat should be separately mutable, some people spam pings but not chat, so you won't lose all communication with them