Why would that be "disturbing"? It's not complicated; the "relative lack of sophistication" is awfully appealing to some.
Like my '97 Fat Boy, for instance. When I ride it, I'm on a very mechanical beast. It handles slow, it vibrates a bit and it's low and heavy. For all those reasons, I love it. It's just damn fun to ride; it's a mechanical beast.
And just so you don't think I'm ignorant of modern machines, I've had my '92 Honda ST1100 clocked at 137 mph by a (friendly) highway patrolman's laser gun. It was his idea to see what I could do with it.
I have a fast, smooth interstate-travel bike and a slow, clunky one that's great on a sunny day to go out and watch the cows go by. I love both for what they are (and guess which one small boys will stand around, waiting for me to light it off?). It's not complicated.
My disquiet boils down to cost - if a FatBoy was $15k instead of $22k+, no sweat.
Alternatively, if a 180hp, 186 mph Yamaha R1 was $25k, I'd probably be less critical of HD.
To me, it's the same as selling a Dodge Ram diesel for twice as much as a Porsche 911.