No, they should not use the video or any other argument about the fraudulent election. The one article of impeachment charges our POTUS with "inciting an insurrection" in his speech to Patriots that day. The issue is not only a 1st Amendment issue but one of the illegality and unConstitutional use of "impeachment" against a private citizen. This is the issue.
Just now hearing that The Turtle will vote to acquit our POTUS. This is over today. Our POTUS will be cleared. At least that is some good news.