To me it just looks like some kind of fear of a new thing, because technically there is nothing really complicated about Mastodon. Still, I do understand that switching to a new platform corresponds to some non-negligible effort and one would have to substantiate it with sufficient benefits. We, technical people, should not feel superior but explain that the benefits are stronger than the downsides and switching is worth it in the long term, especially due to the ongoing enshittification of all popular for-profit platform managed by megacorps.