Only Star Trek fans out of any genre fandom would look at a huge epic film coming up and complain. How much we take the franchise for granted these days, even after it almost disappeared for a third time not long ago. You can pick it apart, but it mainly matters if it's good entertainment, which ultimately ST in all it's incarnations is.
As for the negative reviews. They may well not have liked it, which is fine, but it smacks of the old popularity backlash...sometimes something is just too popular for the media to take, then they set upon it like wolves. It would have been almost unprecedented for the two JJ Trek films to have 95% approval at RT. There are already many glowing reviews.