The whole point of this place is to spread the network out:
https://fedi.tips/why-is-the-fediverse-on-so-many-separate-servers/
If the growth of m.s is a threat to this, then that growth needs to be stopped.
Ideally, the owners of m.s would stop taking signups, or at least remove it from the official app. But they're doing exactly the opposite, they're telling everyone to sign up on m.s.
M.s are destroying the driving force of the Fediverse by doing this, m.s need to stop.