I can understand why they might say 'its too complicated' but why tankies? I saw what appeared to be a fairly large tankie instance (lemmygrad.ml) but beyond that I wouldn't expect there to be an undue presence. And they are certainly tons of tankies over on Reddit too so...
Not trying to insert my own opinion but I believe it's because the core Lemmy devs actually admin and/or are involved in said instance. Well verify for yourself but somebody said it's hosted from the same IP as lemmy.ml. And the core devs comment and moderation histories are public for all to see.
Even if it was, it's a red herring. Lemmy is AGPLv3 licensed to ensure you will always have the liberty of knowing whether a malicious instance is doing shady things with the source code. On the "enlightened" platforms you have no such possiblity. I can't stress enough the importance of a strong copyleft license for most important software you use.
That might be it, especially seeing as they use the same domain of .ml but as I don't see why it would matter, because of the nature of it if they ever do bad things people can just leave/defederate or even fork the code. I dont care to go verify if it is the same ip (I'd have to figure out how first) and it doesnt really matter to me