Profiling isn't stereotyping, but cancel culture seems to think it is. I'm not LDS but I didn't think it offensive. I am an amateur radio operator however, and I think it likely if for no other reason than the fact that there's a disproportionally large crossover in demographics between the two groups. In fact, as a young adult I worked at a commercial and ham radio shop that was owned by LDS folks.

Ham radio doesn't need to litter the area with these little setups. The Wasatch front already has a bunch of strong mountain top repeaters, some can even be tied together. Check out https://en.m.wikipedia.org/wiki/Intermountain_Intertie

IME/O, hams and LDS alike tend to go above board when setting up infrastructure like this, and I feel they'd be quite public about their existence.

Some ham radio repeaters atop high-rise buildings I know of are kind of sketchy (such as when someone in the local radio club makes friendly with building engineers/management so they don't have to pay commercial leasing fees or go through HOA baloney, and will sometimes keep the location a secret to avoid attention), but the vast majority are listed on publicly available databases like RepeaterBook, ARTSCIPUB, RFinder, ARRL Repeater Directory, and/or each state's repeater coordination directory, or the AREDN mesh directory, or other ham radio WAN sites.

Since SLC is still totally clueless as to who put these up, it rules out LDS Hams for me.