Pretty much. I still respect the engineering that they goes into their stuff, but at this point, the AR is a very mature platform and even if you went with some mid grade(BCM), mid length upper, you are not practically losing much compared to insert your favorite gucci brand.
If there is ever a question on parts available with KAC, just remember, they have had people waiting for over 5 years at this point for them to complete their lunchbox special rifle with no end in sight.
Kac makes really good stuff, but not anything that's good enough to warrant having to wait more than a few weeks.
Oh I agree, hence why it has been a few years since I have bought anything with their roll mark.