From what I remember from a few months back the H100 GPU (I think) cost something like 30k and there were a few companies each buying up to 100k of them so something like this makes sense.
So if the demand for this GPUS don't continue high, which is possible as the newer LLMs are smaller and much better while not taking as much compute to run after trained, then what matters is by how much this deman will fall as I really doubt the demand will fall to 0 but we could be one development away from the deman tanking, being maintained or even going up.
Very unconfirmed so far but if there was indeed a new, and reasonably good, LLM trained without nvidia chips it would signal that alternatives exist, at least for the smaller models, and hopefully would drive down prices of chips needed for training or using such models by individuals and small groups as well, allowing for a lot more specialization of small LLMs for all sorts of tasks.