The sub would have shut down anyways, all the major subs did.

It's a coordinated power play by the mods to get more power, hence why all the subs point to discords and other channels/forums where the mods have full power and don't have to answer to anyone. Mods in general are trying to get away from the regulation of the platform to get even more power from themselves.

The reason for this is that reddit wants to monetize further as a private social media, and the mods want a slice of that cake (or the whole cake).