Youāre nitpicking there to be honest, itās a script that you use with the plug-in Tampermonkey or derivatives of it. No one ever abused FireRTC, thatās a very large statement to make.
Iām assuming they did otherwise it wouldnāt be removed. They arenāt blocking people for trolling scammers, they have an issue with people flooding calls and if I remember rightly a version of SuperRTC came with an auto flooder which is a big no no.