That is not the logic in question. It's not "we have to curate more images", it's "we have fewer users (some are banned, some left the site, some simply refuse to help in censorship and hence do not patricipate anymore) and hence fewer reports or images being uploaded", which is absolutely "less workload". In the words of Comrade
I fail to see how literal censorship was what allowed you to "delete neo-nazi promotions". The rules banned it before, for most of Derpi's existence. The only difference is that they banned everything as opposed to picking one side or enacting wildly unpopular, both with users and with actual site staff, rule changes.