Your group has been invited to join AllianceName. Use '/acceptalliance AllianceName' to join the alliance.
I don't really think that deserves a suggestion, since there is tons of suggestions already we don't have to spam the board with those trivial ones, Kindly ask any QAM to add it since it should be there at first place.
Since it's not a bug but rather a 'missing' feature, I will just be told to make a suggestion on the Discussion board.
It is actually counts as a bug, Group name should be shown but whoever added it for sure forgot to do that. I don't think they'll make it a big deal and ask you for a suggestion by the whole community for something trivial like that.
That's what they did when I reported N key for opening business panel was changing farmer seedtype and train driver freight types. It got locked and they told me to make a suggestion instead, this is pretty much a similiar scenario. The first dev who sees this can easily implement this