I think it's a bit disingenuous to state that it's about fundamentals in PRS. There is a serious lack of fundamentals being demonstrated in PRS, especially at the top. Lot's of the self professed "pro's" slap the hell out of the trigger, among other fundamentals ignored. If you don't believe me, just watch any PRS youtube match, or check out PRS instagram page, or other social media. I see it all the time whenever I go to shoot a PRS match.
The people who are constantly at the top in PRS matches do so because they know how to build a solid enough position in a short amount of time on the clock for different contrived articles. They also know what fundamentals they can and can't get away with - a lot of stages they try to limit their influence on the rifle, and let the gear/rifle do the work. Trigger slapping drives me wild though when I see it from a self described "pro".
It's not a gear race - some of the best shooters, such as Matt Brousseau and David Preston, utilize very little gear when shooting stages. They know that smooth is fast, and know how to build a solid position on the clock. They are also great shooters. I will state though that you won't find either of these two slapping the triggers. But the gear and rifles are certainly getting a lot more specialized to excel in our somewhat contrived sport - just the way it goes.