This story is so full of alarmism that I feel the need to offer further context.
There are ~12,000 Mastodon servers according to fediverse.observer, a site that tends to undercount nodes.
(This is in contrast to the-federation.info which counts 25,000 Fediverse servers.)
Anyway, even with fediverse.observer’s very conservative count, only 1.7% of Mastodon is blocking journa.host.
So what if 200 servers are blocking journa.host?
https://thedesk.net/2023/03/mastodon-server-journa-host-200-blocked/