The ending was the worst part of the movie. I'll accept your reasoning. Overall though, I think it was a great movie.
The problem a lot of people seem to have with the movie, is that they constantly try to compare it to the original. It is its own version of the story, you have to not even think of the older films when you watch it.
I guarantee that if the old Halloween didn't become as popular as it was, people would have praised Zombies version.