I don't have iOS, so I never used voyager. And to be honest, it's been a lot since I used a mobile app to access Beehaw; I only do so through the web.
Now with the moving away from Lemmy to a different software confirmed, I'm waiting to see what the options are for the new platform and choose a new app from that.
Well, it's a list of "well maintained/moderated servers
Any server that federates with threads, a product of Meta a company known for their low quality moderation and lack of ethics, is clearly not a well maintained/moderated one.
It's not a new rule. The admin is just applying the sites rules as they are, instead of making exception for threads as many of the techbro admins that are getting their servers excluded have been doing.