I mean they did show the different elements and some of the glove types but for some reason I still feel that gameplay lacks depth. Maybe it's just hard to show in a video rather than actually playing it.
Don't know why it looks like it lacks depth:
-The attack < block < grab triangle is in the game
-You can mix and match arm loadouts
-Each arm has different effects and elemental properties
-Arms have individual health which can be depleted and leave you without that arm for a while
-Each character has unique abilities
-You can attack with each arm individually as well as curve your shots
-You can charge up your punches which gives each arm/elemental type a second ability
All it's really missing in terms of traditional fighting game mechanics is the high/low mixup.