That's just my observation, ideology does come into play in some kind of way. What I meant by passing a line(in my POV to note) is just to me it rubs the wrong way to defederate with them upon the principles calling them "tankies"(tho, that's not as clear) and their behaviour being assholery(that's a bit justified on the part of the mods if I am being honest, but it could have been handled differently and with open discussion between both the mods and communities of each instance). Other than, it is just how I felt on that part.
I tried my best to explain my view, so if you have any criticism go ahead tell.