My first account on the fediverse was on Beehaw and I was happy with it, but defederating from two of the largest instances gave me a reason to find a new instance. Personally I understand and respect the decision -that is the point of the fediverse afterall.
They had a lot of good communities that will not be cut off from the fastest growing instances which will make things tough to rebuild I think.
If you don’t like it, head over to github and provide them with more fine-grained options.