Seriously, devs? The patch that introduced the diff levels had a single good element, ability to kill that combo breaker nonsense that is only there to address the whining on the cheating AI (what is climed regardless by …)
And now you just take it away? PLEASE don’t.
Some portion of your player base is still out for a strategy game-a-like. Not just a mindless collection of irrelevant pixels.
The AI is gimped enough, too bad the diff levels were done the laziest way possible by multiplying stats instead of better play, but at least keel the gem generation symmetric.
Leave it to the player to set it this way or that way, the option already exist, why take it away?