Can’t see the connection between:

There’s a credible accusation of a serious crime, complete with a witness and some corroborating accounts. And… an independent nonpartisan investigation is performed before anyone is convicted or vindicated!

…and…

The system is broken.

Sounds to me like the system surprised everyone and started working today. So yay for small favors.

Potentially, that is. Technically it’s a one-week delay and a request for an FBI investigation. Trump can still stonewall at the executive level, and then they’d be voting a week later with no investigation. And I can’t say Flake would be willing to vote No simply due to lack of an investigation. So the system would be broken as you said, if no investigation were done in spite of the request for one.