@darius Agreed, but I think it's understandable in the short run: getting permission to create an official account on a 3rd-party site is probably pretty straightforward; getting permission to stand up a server (or server-like container), obtain a subdomain, update DNS, get the application STIG'd and approved, and deploy the application to the Internet… I bet that's at least 6-12 months, easy.
Mastodon makes it fairly easy to migrate accounts in the future, so it seems reasonable.