I guess all those times I used my rangefinder at matches I wasn't really ranging targets? Sorry, my bad, I didn't realize I was delusional.
We can argue about the definition of plenty if you want? or whatever other semantics you are pushing. It's irrelevant. I suspect the vast majority of folks who shoot these matches end up shooting a variety of different somewhat-similar match formats, and like it or not "PRS" is often a generic term used for all practical precision rifle matches--if you shoot practical precision rifle matches, especially local ones, and definitely in some of the other practical precision match series, you will 100% encounter at least some blind or un-ranged stages that require you to range targets, either on or off the clock. We've been shooting NRL22 and 22+ for a couple years and often add a local stage or two to the end of a match, and will sometimes make one of those a blind stage. Been a year or more since I shot a PRS-sanctioned event, but there was at least one blind stage there. I have shot numerous matches where stages were not "blind", but they required the shooters to range the targets. Some events that get lumped into the general category of "PRS" (as opposed to that specific match series) include more such stages. Whether that is "plenty" or not, and whether that's what the OP or anyone else meant by PRS, I dont know...but I personally do not go to a match without a rangefinder, and I usually use it. Again, anyone new can show up and shoot with what they have and in my experience get welcomed into a squad and use someone's rangefinder in a pinch, and figure out what they need and don't need themselves.
"Official PRS Guidelines for Match Directors Related To Stage Design:
“The PRS prides itself on being the most practical of all the action shooting sports, therefore; designing stages that are highly practical COF’s such as short to mid-range unknown distance stages, blind stages with no preparation granted to the shooter, and the use of realistic props is highly encouraged..."