As for me, I like the idea with new Griffin Conservatories and Dragon Fly Hives, apart from the nonsense of converting units for money.
Therefore, after some time, the idea of conversion for money emerged. At the same time, it sets a barrier against double-builds, because there isn't enough money to rebuild/buy out two castles, plus the conversion.
Added 10 minutes later
The idea may be good, but it was presented as: "the people will play mirror matches anyway, so they'll swallow the new Griffin Conservatories/Dragon Fly Hives"
When any new feature that changes gameplay is introduced, there's so much squealing that you lose the desire to deal with it. And the ones who squeal the most are precisely the regulars of topics like "New stuff in WT." Specifically — you, LeBron, Sticky, Samurai, maybe I forgot someone else.
This is one of the reasons it's convenient to introduce new features as a whole package. Like it was with Anarchy, 3 new features at once: a new template + all-random + mayhem. Similarly with Diamond: a new template + a new time limit + minor stuff like linking ink rules to rating.