> If she doesn't understand the internet, that's a serious problem.
You're basically saying that every member of congress in the oversight committee should have a deep understanding of how internet works. Well, that's absurd, for two reasons.
1. They share tasks. Not everyone can overlook everything. And they surely will have staff for these matters, too. Otherwise there wouldn't be any oversight at all.
2. There is a lot more in this world to worry about than Internet.
> there are many very good reasons people are upset with her.
Possibly, but lack of knowledge on one of many possible topics shouldn't be one.