> The risk here is that this does do fundamental long-term damage to mathematics as a viable field.

All the commotion evens out: It's much easier to learn maths than ever before; you don't need to go to lectures any more; you don't need to learn from a specialist (advisor, lecturer) any more; it all costs much less than it used to.

So mathematics will continue to advance, albeit differently from before. The social structures will not survive however.