There is only a handfull of people that think it is ok to have multiple houses and they all reside on this forum.

Removal of grandfathering and the likes would be a good thing, maybe a few people will be a bit off and the likes, but it say in the ToS... that gameplay may change over time as well as requirements to play the game, so yes they can do something about the problem and everyone has signed the Terms of Service to be able to play the game as well, so if they did not read it or the important parts of it, then they blindly signed something.