Johnson isnt like Bay,Liebsman,.....
he has his own style. he is not using slow motion,lens flares every 5 minutes. plus they made it very clear that showing to much would spoil the movie. so it was hard to cut a trailer for the masses. IMO Lopper can not make a big profit. its a movie where a smart guy gets enough money to make a smart movie with an unique vision. cgi is cheap enough so that they use small parts to make it look like the future.
about his own style. just look how it looks when they come from the future. no special effects. no dust,glow,explosions,big cratters. it just a simple copy/paste effect. now its empty and one frame later Bruce Willis is there. boom. he is using the less is more approach. why? because to make the movie he wanted to make he needed to make it as cheap as possible and as simple as possible. the movie got a lot praise last year when some watched an unfinished cut.