I don't think they are this stupid. There's no way Nvidia and AMD haven't learned with current gen how disappointed people are about poor availability. Whenever Geforce social media accounts post anything, they are spammed with "where can I buy one?", "prices are ridiculous!" etc. This is not a good look for them.If the constellation is such, that only with a heavily overclocked Hopper they can claim perf kingship in the desktop and/or gaming space, they are likely to divert a couple of hundred cards, make a lot of marketing fuss around it and then say "sorry, demand is far greater than we estimated. We will be working with our partners to improve supply."
The vast majority of tech press would also scold Nvidia or AMD for this kind of a silly performance-crown-at-any-cost move.