It’s not log(n) but still a break since we were literally using lower bit strength than was trivially factorable thanks to mathematical advances and to the point of thinking RSA 2048 is safe, well we once thought that about 128bit RSA. If the above pans out like the general number field seive did we may yet need to move the goal posts further. And we really really shouldn’t be surprised if it happens since it’s happened so many times already.
I believe this was one of the reasons for the broad adoption of elliptic curve based cryptography. The mechanism is not based on prime numbers, so smaller keys were adequate, and it was hoped that they might avoid future degradation due to prime factorization research. Of course they could still be vulnerable to their own attacks, but it still requires an attacker to expend more resources.
