I think a lot of people got confused with female/woman and just blanket decided it was all offensive. You’ll see it all over social media when someone uses female as an adjective. I think it’s when the descriptor isn’t actually necessary that they get bent out of shape. Like if you were to say the female sportscaster got LeBron’s stats for the game incorrect, someone might be like “hmmm, that seems suspect”. But if you were like Pat the first female sportscaster on SportsnetworkXYZ, most people wouldn’t have a problem with it, but the people that have a problem with any usage of female would.