I can't argue with a word of that. I guess when we talk accuracy, there's a few different ways to measure it.
I have always (internally) defined "accuracy" as the inherent ability of the rifle with proper ammunition to shoot repeatable, small groups. Realistically that means looking at the barreled action primarily (unless the stock causes mechanical problems) as most items outside of the barreled action will be user preference. Basically, if you clamp the barreled action into a random rest type setup, how well is it capable of shooting?
Shootability is the other term that I internally use, which encompasses trigger, stock shape and features, optics, etc. These features all make a gun potentially easier to shoot accurately, but they generally do not contribute to the inherent accuracy of a rifle. A good shooter can use a bad trigger and still shoot a good group, whereas a barrel only capable of 4moa will never be better, no matter what shootability features you add to the rifle.
If talking turnkey, out of the box, don't need to screw with anything to have a rifle that's easily shootable by a new or inexperienced shooter, I believe that's a different thing than looking for a 1/2moa rifle that you can customize to your liking.
It's been long enough that I don't remember all the details of the initial conversation lol. But from what I recall, I think the point I was trying to make is that a 1/2 moa ruger American dropped in your Boyd's stock of choice with a Bic trigger job and $2k in glass will shoot just as accurately, with a quality shooter, than a $6k GA precision build with a TT diamond and a carbon barrel. The high end rig may have features that make it easier for the layman to shoot it well, but end of the day there's not a need to spend huge money on the top tier stuff (unless a person wants to) when reasonably low end shoots **** good, and comfortably with some minor upgrades.