The bad reviews do appear to be by people who are really pissed off that this Abrams trek is not the Star Trek they want to see. So they nitpick the movie to death and then proceed to tell us what they think a Star Trek movie should be. They need to get over it and accept that it is possible a new producer can come into the franchise and put their own spin on things and unfortunately for them it may not conform to their personal preference.
Maybe the next producer that comes in will make a trek movie they like?
James Bond movies were in this thread earlier. Those movies have seen similar changes as the actor changes and the producers change etc. the difference from Connery to Moore to Brosnan to Craig.... Not everyone will be happy with each iteration and everyone has a preference. You can't please everyone!