A.S Has a very itchy ban finger generally and often assumes everyone is as knowledgeable as them so they tend to see behavior like yours as deliberate trolling (or in your case, likely crypto-fascism). It's really the sort of place one needs to "lurk moar" before interacting. I personally don't like how hostile their instance treats people stumbling in, because it often causes drama and false positives like this, but OTOH this allows them to run a tight ship and not have to deal with cryptofash and libertarian shite which can be exhausting.
Ultimately it is what it is and A.S has a tiny impact on the threadiverse relatively. Other than that I agree that it's not cool to label people fascists at the drop of a hat in the modlog but perhaps their admins will pop in and explain if they saw actual fash behaviour.