It really isn't. It's a fun little thing to connect the various shows

Online fan opinions appear to be allergic to fun, and have a narrow perspective of what Star Trek is. If it doesn't land just right, the Goldilocks Trek, then it is completely wrong, full of memberberries, and the production teams are lazy hacks who don't get Star Trek.
Never mind how short the trailer is, or that it's purpose is to generate discussion. Never mind that the initial framing device is that this is the first Starfleet Academy class at the San Francisco campus in like a 100 plus years so they just might reference past events for the cadets.
Nope, it's just pure laziness on the part of the production team. No reason to get excited at all.
I do hope all those who are unexcited just execute their better sense of control:
