Of course they should have. It hasn't entered their media sound bite intoxicated minds yet, but if Hutchinson's testimony were true then two more conclusions flow from it:
1 - Nobody can blame President Trump for anything if he was actually prevented from going to the Capitol. Had he been allowed to do that he could and would have prevented the kind of behavior by agitators and confused people at the Capitol that lead to the reported problems.
2 - Refusing to follow the lawful requests of a sitting President, and taking them to a destination other than where they wanted to go, almost perfectly fits the definition of a coup. And a kidnapping.
The committee is just the 3rd round of trying to frame President Trump. You would think at some point they would learn, and try the truth instead of fake witnesses and DNC talking points.
Every day this witch hunt is allowed to continue unabated, only turns more Americans against the unselect committee, and Congress as a whole. They started out with no credibility to begin with, and sure as well won't earn any, with their one-sided vendetta against Donald Trump, and anyone associated with him. They didn't learn anything from the Russian collusion hoax, or the two phony impeachments. Why stop them when they are doing such a good job of destroying themselves.