[LTom]

I suppose it fits with the rest of this article being rather disingenuous. Alex Gleason, Spinster and Neenster are part of a controversial group that detractors call "trans-exclusionary radical feminism." For better or for worse (the details of this controversy are not necessarily relevant), instances of that nature (and pretty much anything that runs on Soapbox) are defederated by a lot of Fediverse servers, and it seems that Meta for one reason or another has joined those servers. Gleason is well aware of this controversy.

My best guess is that Meta hopes to make itself appear more palatable to mainstream Mastodon servers by also defederating.