Yes and no.

Later batches seems to have *at least* soldered properly port - i.e., no "cold solder" on USB case to motherboard. but, it's still not bulletproof solution - if You open case, You could see how it's done re jack port or speakers, they're, generally, indestructible.

USB port is still soldered only to PCB surface. Hardening it as per instructions is good idea, as it *seems* to make it many times stronger - still, it's *only* surface solder anyway, so nowhere as bulletproof as solution for audio jack or speakers.

/Estel