Literally nothing stopping AMD from supporting Ray Tracing right now, unlike Mantle which AMD hid behind a smokescreen of it 'still being in testing' when approached by Intel.
I'm guessing you know more about tech than me from past posting, but you seem to concentrate on the us v them an awful lot instead of, well, not bitching about stuff basically, so don't know the need to concentrate on the Mantle example.
Post wasn't about Mantle and what did/didn't happen, which in itself is pointless because you have people believing what they'd rather believe happened as shown above(not your points on Mantle).
It has zero bearing on the point being made about being negative towards tech access/locked out because you are not prepared to buy into the tech.
That's the bottom line imo, if you are anti RTX and gobby with it and not prepared to pay for it, basically boils down to-'so it's crap!'
For example you have Greg here delighted he's got better performance from the update, but whereas back when BF4 running Mantle after an update that improved it he'd critise Dice/Mantle to the max-'it's crap'.
I'd hazard a guess it wasn't bitterness directly at AMD but more at AMD users partly out of jealousy because he couldn't use the tech(like AMD users can't use GPU PhysX)-but also more importantly to my original point-because of the stick he took purchasing original Titan-which he'll tell you I even told folks to shut it and give him peace(even though we don't see eye to eye very often

), it was out of order.
Negativity in this game breeds resentment and reprisal, and now that it's literally went full circle from Dice/AMD new tech partnership to Dice/NV new tech partnership with largely different shoes but same old bs posting.
Great post, I think it is a lot of factors which are price, failure rate and Jenson on stage playing up RT and it also not quite ready and also the shoe is on the other foot now normally Amd do this with tech which is not ready and try to push it out early which they get a lot of stick for.
This guy gets it.