It just means that, if you're going to make a Star Trek movie, the safest bet is to actually make a Star Trek movie.
Star Trek means two things:
1. Star Trek; a TV series from the 1960s. Cult status, iconically popular. Much of its terminology, characters and so on have passed into pop culture legend. Captain Kirk and Mr. Spock are as enduring as Bond and Batman in the public consciousness.
2. The Trek Mythos. The financial success of Star Trek: The Next Generation proved that a series without the iconic characters, but with elements from Trek's mythology - transporters, Klingons, the Federation, etc. - could work. The decline (in ratings terms) of Deep Space Nine, Voyager and Enterprise proved that was never certain.
Abrams and his pals are interested in 1. They don't care much for 2. That's just the way it is, for better or worse. Here's hoping 'better'...