The presence of the television cameras changes the debate. Suddenly it becomes an infomercial aimed at the American couch potato. Reasoned analysis is neither desired nor useful.

Later on they will read the report or have one of their staffers do so and (hopefully) that, along with the ususal political concerns, will guide policy.

I think you are correct, the staffers have a lot to do with matters. I know many politicians. Some are extremely intelligent, some are not at all. Their effectiveness almost always depends in no small part to the skill of staff and operatives working on their behalf.