I'm not sure about the audience for this, if you're already willing to learn the material you probably already engage with AI in a way that isn't "please output the answers for me" because you're likely self-aware enough to know that "answering" isn't always "understanding." Maybe this mode makes that a little easier? but I doubt it's significant
If you're the other 90% of students that are only learning to check the boxes and get through the courses to get the qualification at the end... are you going to bother using this?
Of course, maybe this is "see, we're not trying to kill education... promise!"
I think as with everything related to learning if you're conscientious and studious this will be a major boost (no idea, but I plan on trying it out tonight on some math I've been studying). And likewise if you just use it to do your homework without putting in the effort you won't see any benefit or actively degrade.
I mean, it's about context, isn't it?
Just like it's easier to be productive if you have a separate home office and couch, because of the differing psychological contexts, it's easier if you have a separate context for "just give me answers" and "actually teach me the thing".
Also, I don't know about you, but (as a professional) even though I actively try to learn the principals behind the code generated, I don't always want to spend the effort prompting the model away from the "just give me results with a simple explanation" personality I've cultivated. It'd be nice having a mode with that work done for me.