The next step will be "banning Dragon Utopias, because one guy gets boots of levitation and a bag of gold, while the other gets a teapot and a book of air, it's actually imba"
Then (after banning utop) we'll start banning external dwellings: "well what is this, he got an angel external dwelling on his respawn under guard with lots of one-//wood, it's just imba, there's nothing to counter it".
And so on ...
Now seriously—external dwellings of levels 5-7 under minor guard aren't encountered that often when the opponent lacks something similar, and as I've grown tired of repeating, there are few troops in them and they cost money. Regarding utop—here too, everything will be balanced by the fact that taking them will become much harder without a bunch of free troops. So it's not as simple as it seems. Today I played a game with Britva with an agreement to ban canned uliks; we both liked it. And recalling other games, I'll say that as a rule, when the imbalance of free angels and ducks doesn't have a significant impact on the course of the game—simply put, both get very little or manage to take very little—the games often become more interesting and dynamic, often with a good finale or even several.