I will go for "golden age".

Most of the skepticism towards using AI in maths could be applied to using computers in maths in general.

For instance, a computer can find a solution using brute force, like for the 4 color theorem. By doing this, we skip the potentially insightful part where the problem is reduced to something humanly solvable.

And yet, I don't think any mathematician today will tell you that computers are anything but essential tools.

I believe that AI is the same, and that mathematicians and other scientists will embrace it like they embraced computers. In fact scientists have been using AI (aka. machine learning) before it was mainstream, which is totally unsurprising because they invented it in the first place, the industry just gave them more resources, which turned out to be what AI needed.