There are alot of PvP-related achievements, you need to finish, before being able to get the Completionists Monkey.
Yes, it could be bad for the players who haven't gotten the Completionists Monkey, however it would be unfair towards the people that worked hard, in order to achieve theirs.
No Support.
Idk how difficult those pk achievements are , the monkey is annoying to me because it allows 3 wayers into nhing and also allows carrying more brews , perhaps instead of removing this monkey the server could potentially look at a brew cap or so ?