Should he really be needing to join TS or macro? Is the whiping in this case really due to the TS not being on VoIP or not using a macro? I highly doubt it. There's 2 possible ways this fight could have gone down:
A - The TS was solo tanking. In that case, he was maintaining up 3 stacks and only required 1 orb occasionally. There's no need to tell DPS when to eat orbs in this matter, they should always be eating the remnants.
B - They were tank swapping, in that case, what was preventing the other tank from telling people on TS when to pick up orbs?
To be fair, it sounds more like they were merely looking for someone to lead them through the fight. Rather than being a true farming party.