Basically, you're attempting to flood the issue with a lot of fairly minor achievements, maybe the strongest of which was the detente -- the design for which was interesting but not exactly widely in use today, which I guess is a legitimate counter-argument since you used it against things that I would consider innovative. So their claim here was that they made them production-available... Which is something of a lesser claim.
Most of the rest of the stuff is about "bringing stuff to production" etc., or is of questionable technical merit unto itself. I didn't know about the L7 bolt, but I'm not sure where it belongs in the hierarchy either.
Bounding the list on the other end, the worst has got to be the rifled barrel. And again, this is why I'm saying you might actually be doing the opposite of what you're trying to do if you bring the rifled barrel up.
I very well remember seeing Pro-team products in stores and catalogs, etc.
I just never bought into it. Some stuff I acquired incidentally from my Craigslist habit, and if I can't sell it to the next sucker, I just put it in a box and keep it as a tragicomic reminder of just how bad the bad old days used to be. Kind of like this aftermarket Venom bolt that I recently liberated from a friend because it amuses me. Plus I heard it has titanium in it, so it must be worth something.
Just because something became a trend doesn't mean it was a good trend. If the bar is lowered so far that we're just happy with anything that the manufacturers throw at us, then I completely acknowledge your points. The sheer volume of minor notables that Pro-team tried to sell us is indeed impressive, and you have clearly demonstrated this.
"Accuracy by aiming."
Definitely not on the A-Team.