Psionic Bias?

[Prime32]

A D&D wizard is more like the alchemists from FMA in flavour than most spellcasters (rather than raw willpower, to cast lightning bolt they have to create a spark through mundane means and amplify the reaction). And even they don't have that weird thing where they have to encode each spell and can only cast it a specific number of times. Seems almost like Magic From Technology to me.

On the other hand, psionics has mechanics which work like every other implementation of magic ever in a system which isn't D&D. A character can make his fireball stronger by putting more force into it (rather than their strength following an exact formula). And they can just keep zapping a guy over and over until they're too tired to cast any other spells.

What's weird about using diamonds and rubies to store magical energy anyway?