Good step
Let's just wait and see if Cisco will do the same.
As I said before, one of the leading doubts in this affair has been that the accusations were not supported by evidence that could be examined by independent organisations. If you combine that with the fact that the kit you're supposed to replace Huawei's gear with is NOT subject to the kind of openness that is demanded of Huawei it is hard not to arrive at the conclusion that there is doth a bit too much protesting.
It is not a matter of trusting either China or the US - the default security stance should be that nothing is worth trust unless open to independent assessment. That said, I have seen fewer problems emerge from China than the US of late, which is weird.
Biting the hand that feeds IT
