Horrible journalism. It was a catchweight at 195 lbs, not 190. And whoever wrote that left out important details.
Strickland took that fight on 6 days notice. Allen was originally fighting Ian Heinisch, but it was cancelled on the day of the fight. Heinisch tested positive for COVID. So the UFC tried to find a new opponent for Allen for the following week's card. Strickland, who had just beat Jack Marshman the previous week, stepped up and fought Allen on 6 days notice.
Allen wasn't winning the fight before Strickland knocked him out in Rd 2. Instead of making that false claim, Allen should be focusing on the fact that they didn't train for each other as the reason for a rematch.
Full fight:
Finish: