The OTA is like a librarian. They don't go to you, you ask them questions. Of course the answers they give may be filtered through the librarian's bias, but that's fundamentally different than lobbying.
No, because it's a government agency. The point is so that elected officials and other government agencies can get nonpartisan guidance on tech issues that is independent from corporate interests.
It's also hardly a unique idea. The Congressional budget office, the Congressional research service and the government accountability office are existing examples of successful expert agencies run by Congress on a nonpartisan basis. There's no good reason why a tech office shouldn't be there too.
