I don't think it's typical at all.
Ortiz has done nothing that I am aware of to cause baseball fans to root against him.
I honestly find it baffling.
It's not as if Ortiz had any agency in the trade, I am not aware of him saying anything to disparage the team.
He's just going about his life, doing his job and someone is seemingly pleased he's not playing as well now as he was earlier in the year.
It's weird.