I suppose openAI could have focussed their efforts on a subset of open problems that have a clear real world impact and leave aside the more esoteric open problems as a way for human mathematicians to hone their skillset. However, this would have been a short term bandaid. With open models 6 months behind the frontier, any of these problems might have fallen to the homebrewed efforts of enthusiasts early next year.
What is mathematics for? From the outside looking in (I'm a biologist), I have always viewed mathematics as a way to understand reality and to improve our ability to manipulate it. But what I often hear is that mathematics is foremost about human understanding. But isn't that only because it's humans that needed to do the mathematics in the first place? It's not obvious to me that mathematics without human understanding has no value. For example, it might be that P=NP. The algorithms are handed down to us and we can apply them without fundamentally understanding why P=NP.
Mathematics seems to be entering an era where human + machine maximizes performance, much like chess in the 1990s. However, imagine a future where even talented mathematicians are nothing but noise in the machine (as is the case in chess now). A future where AI generates and verifies proofs without humans in the loop. Where mathematics may be beyond human comprehension.
In that future, does it matter that early career mathematicians are inhibited by these developments? Perhaps not. Programming faces the same issue. As AI crawls up the competence ladder, does it matter that fewer people have opportunities to develop the skillset of a senior engineer? Perhaps not. I have no doubt that biologists will face the same problem soon enough.