There is a difference between Radar near the front being quiet to avoid detection, and radar 150-200+ mi away scanning the skies. So no, I wasn't being contradictory.

Ukraine has released very little combat footage from their Migs, so I'm surprised there's enough footage available for you to review videos of Ukrainian jets on a daily basis. Just because we haven't seen footage of a Mig engaging a tank, doesn't mean it hasn't already happened.

Edit: HARM maximum operational range is ~140mi (fired high, so actual range is much lower based on the actual elevations Ukrainians are operating at). Russians can safely park radar and SAMs 150 miles out and not have to worry about HARM or HIMARS at this time.