Isn’t having the German bishops work together considered subsidiarity? The correct minority shouldn’t back down, and thus unanimity will never be reached.
It is true this discussion really should be held in the first place, but acting as a “brother bishop” and not the “authoritarian” reminds the fraternity of bishops of the deep responsibility in their own dioceses, as well as the need for unity with the Pope.
The discussion is not necessary and never was. You don’t “discuss” sacrilege of the Holy Eucharist.