Can the "list holder" at AC OOT camp remove people for no reason?

[Mr-B]

I'll paint the picture:

I log in on my shaman who is parked at oot camp and see a mage.

Me- "hello, anyone else on the list?"
him- "no"
me- "Okie dokie, i'd like to be next"

no response

me- "want me to assist on cyclops' at 60%?"

no response

I sit at the spot waiting for my turn, and about 15 minutes later he pulls a seafury and has hit pet attack it right on top of me.

It attacks me, and I wait to see if he's gonna try to grab agro but he does nothing.

It gets me to about 60% and i move away.

me- "im gonna pretend that was an accident"
him- "going to be rude then ill take ya off the list. good luck to ya. your standing in the way go be productive and stop sittin around"
him- "good luck welcome to ignore"
me- "You can't decide who to take off the list"

I have screenshots of everything but don't feel like editing them together.

So my question is, what rules are there in place for stuff like this? There was nobody else in line, so I'm just going to wait for him to get AC then take spawn.

I don't want to bother a GM about this because they have better things to do, so I thought i'd just post this here to get some conversation going.