FWIW, BMWs (probably among others) have been using this type of fan for a while. They are variable high speed. My 2001 E46 BMW has a similar fan. I had to replace it (I think the module burns out) to the tune of ~$400.
I got mine muddy once. Other than boogering up the internals, the mud on the fan blade throws it noticeably out of balance. They also wont spin to as high of an RPM (which is part of how they move so much air).
My white 4 door E46 seems more and more similar to the white 4 door JKU sitting next to it every time I work on them.
edit: I have an RC supercub that I've upgraded the motor on to a brushless outrigger motor.
Your E46 does have a similar set up, but different. My 06 Mercedes also has a similar fan control, in fact the Germans and high end American vehicles have had computer controlled variable speed fans for over a decade. There was a recall on your cooling fan if I remember correctly, the NTSB investigated it.
In that era most fans were brushed DC inrunners, very different than the Pentstar JK brushless outrunner. Cadillac and Ford speed controllers were unreliable, I liked the Crown Vick dual wound fan, identical in performance to the Lincoln fan but only two speeds. There were PWM operated fan clutches, hydraulic fans(Lexus), variable speed DC, dual fans, concentric electric mechanical fans......
I find it unusual to find this fan in a Wrangler, usually the Wrangler gets low tech components; I think the fan came along with the Pentstar.
The Wrangler is growing as complex as everything else. In some ways I prefer the simple Jeep which had more in common to a flathead Ford and could be fixed with a hammer. The other day I drove a V8 TJ 20 miles back to the shop in over 100 degree weather when the fan quit. 3 gallons of water at the mini-mart(poured on radiator) and downhill coasting got me back to the shop.