Yes.
Half the fun of a game is finding out how the details work. I never would've stayed with it if details like how Adrenaline work were handed to me on a silver platter. Doing research is extra easy thanks to the Trainer, and these ambiguous aspects give people stuff to talk about, just like secrets behind how certain cards work (for instance, how Antimatter+Dive used to work, or how it works with Poison).
If Zanz wanted everything to be super-easy to grasp, he would've changed in-game descriptions on certain cards. And yes, it panders to the casuals, which is good for fleeting popularity. Is that a good thing? I leave that to the developer to decide. Not you, and not me.