Kind of made Tommy unlikable in this...
...I didn't like the Tommy character in this as much as the previous two films because he's essentially responsible for all of the deaths in this film because he dug Jason up. If he would have kept him buried then none of this would have happened.
They could have had someone else dig him up like in the dream sequence in the beginning of part 5 and maybe have Tommy come back to try to defeat him but in this one Tommy felt like the bad guy.