No, the board was conducted Feb 2-Feb 7 here at Ft Knox, right in the middle of impeachment. Vindmann obviously has some flag officer supporters for the board (a bunch of colonels) to place him on the list.
Thank you for the correction. I concur with you statement on him possibly having flag officer friends. Unfortunately, to me having spent 20 years in the Army from E-3 to O-5, I hope that he is brought to task for his unbecoming conduct.