I disagree with voting online, because online voting can be used to attack the site. You can end up submitting more crackpot papers, then getting a bunch of phony accounts which vote to review the paper.
But I am also wary of rejecting things based on moderation power. The "objective criteria" are not so simple to evaluate in practice, and people need to exercize judgement and always err on the side of acceptance, I think.
But given that this paper was obviously insincere, offensive, garbage, I am happy that this particular paper was removed. This is one way of dealing with this sort of attack. But I think it should have been considered SPAM, so as not to set a precedent for political deletion of other things.