Senate hearings tend to legitimize the criminal investigation that would go along with the hearings. Harder for msm to ignore or sugar coat wrong doings and harder for idiots in House to conduct a probe going in the opposite direction (though they might try).
We only need the criminal investigations but red pilling potential jurors is a plus as well.
Also puts pressure on the DOJ not to sweep things under the rug.
Already answered your other points.
It’s all about the optics.
Don’t see the up side in asking the question or forcing the question.
In my view, the Q team would most effectively work in the shadows with their identities remaining anonymous and striking fear into the pea brains of the swamp.
If they can one day say their job is done, then they can train their successors and let them take over the watch, as evil will always try to come back and take over, just like they did over the past half century.
If there is an advantage to publicly acknowledging the Q team, I supposeTrump will simply volunteer the info one day while toying with the msm.