Mowing with Batwing Question

I have been mowing with my 16 footer behind a Kubota M8560 for about 10 years now. Nothing commercial, just keeping roads, ROWs and pastures clean when needed. However, when making any significant turns, I have always slowed the throttle and disengaged the PTO due to the noise the unjoints make and the thought that I’m wearing them out much faster than they were designed for.

Now the question: When I see the county/state/contractors mowing the highway ROWs with bat wings, they don’t seem to even check up when making sharp turns or uturns and it doesn’t appear they even slow the throttle. Am I just dumb, or is there something I’m missing?