Bad editing?

I was recently very excited to see all of the Toxic Avenger series pop up on Comcast's free on demand service. So the other day I watched the Toxic Avenger and was a bit disappointed and confused by some editing that someone did. Most notably, they cut out the scene where the kid on the bike gets his head popped, a few others that I can definately remember are the scene at the end where the mayor gets his guts ripped out and the scene in the fast food joint where the guy gets his arm ripped off and when they show the guy's hands going into the deep fryer. These are some of my favorite scenes and I was upset that they cut them out. However, they did leave in the scene in the gym when the drug dealer (who very much resembles my uncle) gets his smashed by the weight machine. As the movie still carried a TV-MA rating (if i remember correctly) does anyone know whay some of these scenes would be edited out? From what I know of Troma films, I do not think they would have had anything to do with it.