But it wouldn't if all cards supporting this were "unlocked" by default and thus the other "enterprise-grade" cards weren't that much more expensive. Of course that'd reduce profits by a lot.

it probably would - you saw exactly that outcome with mining.

for a lot of these demand bursts, demand is so high it cannot be sated even consuming 100% or 200% of typical GPU production.

cards like RX 6500XT that simply don't have the RAM to participate were less affected, but even then you've got enough cross-elasticity (demand from people being crowded out of other product segments) that tends to pump prices to 2-3x the "normal" clearance prices we see today. And yes, absolutely anything that can mine in any capacity will get pulled in during that sort of boom/bubble, not just "high-end"/"enterprise".