When i /mute all, it shouldnt unmute the people i already have muted.

So, i was flamed by my entire team who died to a 4v3 (yep, a 4v3, meaning WE outnumbered THEM) because i was not following a yasuo into an unwarded jungle as an immobile lux with no flash, as well as the fact that the enemy jg just spawned rift herald in my lane and i had to protect my turret (for the record, i pinged MIA like 4 times and pinged "yasuo alive", and pinged danger on them.)

I muted the top who was doing most of the flaming, but just didnt bother with the others because they didnt really say anything that inflammatory.

And, surprise surprise, guess what happens a few mins later? I get heavily flamed by my entire team for telling our adc to go farm in his own lane and to stop stealing all of my cs. So, i /mute all and focus on the game. But guess what i see in the chat?

Our toplaner, whom i muted for flame like 5 minutes ago, is talking shit about me and flaming me.

Yeah i can just mute the top again (obviously i immediately did), but why did i have to see this? What is the reasoning for this unmuting people i have muted?