I dislike Emotes in general, not because my opponents use them to disrespect.
And looking at the variety of Emotes in the shop I can honestly and convinced say, I never want to see them ingame ever.
There is a small problem though. The Emotes tab in your profile enables you to flash an Emote at the start of a game which is way before I will be able to mute every single Emote of my Allies.
This is a huge hit for the qualitiy of life in this game. Instead of buying items and planning an invade or my laning phase or to communicate a strategy with my team, I need to spend several seconds with something as trivial as muting Emotes. Ugh.