Magic used to be a science.
Now there is no difference between Bioshocks plasmids, Marvels mutant powers or any other generic bolt of light that every game has.
Where is the creativity? Where is the customisation, the choice?
All gone in favour of gimmicks and graphic flash.
Actual, real content has been removed because the package needed to look better and it is undefendable.
I disagree with your assertion that Magic, a mystical, arcane force, is a science (Urg... I'm sick of dissecting frogs!)
Instead, I've always treated magic as an "Anti-science" in the sense that "Science is trying to figure out how the world works, and learning the laws that govern it", while magic is "Bending the laws of the world to do what
I want it too, regardless of what's physically possible."
Exactly, is not because you cannot use both at the exact same time that it is impossible to use both.
What makes you think you can't fire off both spells at once? One equipped to one hand, the other equipped to the other: Point both palms forward, pull both triggers, blast away.