Im kinda confused but is it true there is no magic what so ever in game or just the demo... If some im not sure how ill like this no magic system and seems you only play as one person seems very shallow in combat with very little changes besides switching your melee weapon which all look so similar.
There is magic, but it's not in the demo. Tabata was quite forthcoming (as he tends to be) and said it wasn't ready for the demo so he didn't include it.
Also don't judge the combat until you play it.