X-pac heat is from the early 2000's. Long after DX was finished he was still being booked and winning a lot but hadn't evolved his character and fans started getting bored of him.
The boo's went from heel heat to actual "we don't want to see this prick anymore" heat that was later dubbed X-pac heat when fans legit hated the person behind the character.
It's not just the model and it's pretty hard to forget a character you hated that's still the same character.
He was a shit antagonist in DmD and he is still a shit antagonist in this. He's there as a creepy potential rapist that we all know isn't going to get anywhere, it's just slimy and pathetic and served no actual purpose.
I stopped playing DmD because he ruined every scene he turned up in and didn't pick that up again until a few weeks ago, still had to completely skip a large chunk of the first season.
Rather than use new and interesting characters they went back and picked the absolute dumpster fire character from DmD that no one wanted to see there nevermind in another game.
It's not just the same model playing the same role, it's the same character brought back for an encore absolutely no one asked for yet again shitting up every scene he's in.