I was prot on my warrior the whole way. Hehe.no one waits unfortunately, I miss the 3 sunder before dps mentality that people had but that was just to accommodate bad tanks not actually necessary you pretty much do the same as it was in TBC>WOTLK, Just give the tank a second breather and then go ham or kill non elites first, having tanked a lot of classic content i've never met a group that would wait you just had to pick up the pace yourself and pool rage, gear helps too.
also to note a lot of warrior post 1.6 or 1.5 were not prot spec because it had no shield slam and threat modifier was not as good, I think that may of contributed to that mentality which carried on for the remainder of classic.