Happened to me as well, I assumed it was scripted to happen to give a kind of un-enforced tutorial.
The game.... feels like Destiny in just about every way. Still the best shooting in the field. Still the (imo) poorly written dialogue. No cringe worthy line deliveries like good ol' Dinklebot but, from the one mission shown, the writing has not made giant leaps forward.
I'm very interested to see what they do to change up the more 'open world' segments of the game, which they don't show off at all in the beta, and to see exactly how well the whole integrated sherpa thing works (I forget the official name they gave it).
I really enjoyed Destiny as mostly just a chill grindy thing I could do in the afternoon when I didn't want to think too much. I can't imagine Destiny 2 is going to mess with that formula too much, so I'll almost certainly enjoy this as well.