Ryan McAvoy said:

John Boyega and Daisy Ridley somehow look so OT-Star Wars in this 2nd trailer (Not totally sure I know what I mean by that).

For one, this many hairs being out of place wouldn't have been tolerated on the Prequels. Also Daisy distorting her facial muscles into something that aproximates convincing acting wouldn't have been allowed either ;-)

Like you said, I think it's probably the hair floating in the wind: it looks done on-set, doesn't look fake. Also, to me this shot resembles the one with Luke just after he saw his house burning.