Totally hear you about ice and snow. I use to live in Aspen Co for a long time and am very familiar with snow driving. The cool thing about the PC is you have 4 separate modes, with 8 individual setting per mode. In fact, for the snow, you can dumb the throttle down a bunch if you so choose to help reduce wheel spin. However, someone like you who spends half of the time on dirt roads and owns a Raptor, would actually benefit big time from having one installed on your truck. The minute you put the truck into Offroad mode, you get all the benefits of that setting. The unfortunate thing about Offroad mode setting is Ford elected to drastically dumb down throttle response. So, if you have a PC, you can now put the truck in offroad mode, have all the benefits of increased yaw angles, airbag functions, 2wd rear locker with all the aggressive throttle response set by you, not Ford. In no way is this a downside or a gimmick.
To give you an idea, there are currently two open class race cars running a PC. One of these cars has won their class at the Baja 500, and were blown away at how much better the car drove with it at their desired setting. You can tune the PC to work just right for you.
If you are totally against them, then so be it. I would just urge you to try one at a local event, and see for youself how much better the truck drives with one on, vs. not having one on at all. It's worth the price of admission just for being able to override off-road modes dumbed down throttle response.