I myself was present during this, and I feel like every point that you made makes a lot of sense here.

At first, I didn't pay a lot of attention to the situation, altough I must agree, it's a bit odd to give two reasonings as of to why there was a temp ban, infact, why was there a temp ban? I know it might of been a joke taken out of hand, but still, like Airo said, atleast 5 mins would've been enough.

All in all, I sincerely hope atleast some sort of admin will reply to this, and give their point of view when it comes to this, I also find it to be pretty odd, as this was going on Discord, I'd imagine it would make sense if it was going on on the server, where as it could be seen as Chat spam.