The fact that a nearly two minute trailer barely shows any of the personality or nature of a completely new superhero is a dumb criticism?
I didn't say that he WON'T have a personality. I'm not trying to judge the film before it has come out. I'm pointing out how the trailer "feels". As a trailer, it doesn't do a very good job portraying Scott Lang as an interesting character.
Lang does indeed seem to have no personality in this trailer (ditto Pym, really). No charisma. Not much presence. In the actual moments we see him, he's quite generic, bland, what have you.
Darren Cross and Hope Van Dyne are not the main characters, and are not the main characters whose identity will need to sell this film. So that's logically less of a concern for a teaser.
But when you present a relatively bland, lifeless Paul Rudd in your trailer, I would think that's something of an issue.