Thanks for the pic, those do look a lot taller than I remember.
Perhaps, they wanted to keep the short ones on the cab because it has a higher center of gravity. If that is the case, shorter with less ground clearance might make it more stable.
When I was looking, I ruled out the LX Cab for my uses since I’m on hills and the extra weight up high would have only made it less stable. You have to get to a heavy tractor before cab weight doesn’t impact stability very much. When I was looking it seemed like you had to go up to an MX to get a wide front end and rear wheels with R4s that both can offset and carry wheel weights. That was way more than I wanted to spend for my little hobby projects.
Anyway, good luck with your new tractor.