I'd never fall out with anyone over it. But, I see naked bikes like the CB750 (Enfields, Z900RS etc.) with significant money spent on fairings, saddlele bags, saddles, even sissy bars and bar risers etc. I can't help thinking that money could have gone on getting an old Harley. Then you have the best of both worlds. Naked classic sports bike one day and utility / cruiser the next. And you're likely to lose less of your investment when you come to sell. But fair enough, their bike and money.
The only time I wince a bit is when irreversible changes are made to a a good bike. But again, their bike, their vision. Also, one less to compete with mine when my family come to sell off the old junk in the garage!
Two totally different kind of bikes really "old harleys" and SOHC and DOHC fours that either came from factory with jammers. or people added jammers to them.
I'm biased because a jammer went onto my K2 in the middle 1970's, dad had bags on it too, but to me perm mounted hard bags suck LOL, now ones that can be removed and attached at will could be interesting. The Jammer alone gives one a LOT of space to keep stuff like rain gear as one example. The huge add on market IMHO is what drove OEM to include frame mounted fairings on factory bikes.
I have a K3 that is down to frame right now and I would love to find a frame mount 1/4 fairing for it :-).
The OP faring what struck me is that somebody could 3D print a really nice lower section that literally fit like a glove or a second skin, and use a fairly common modern small windshield.
I am for sure not a fan of bar/fork mounted fairings however.
Bill