I sorta get why this exists in theory, but these two aren't really combat monsters.
Freddy and Jason mix it up enough that I can see why then hitting each other would be cool.
This seems more like attaching some wheels and arms to HAL and Colossus and having them try to beat each other up.
I'm not gonna lie, if this movie was just the two of them getting pissy with each other over killing the other's target and just trying to screw up the other's murder attempts, I'd watch the hell out of it.