I would probably say this a bit different, perhaps like this:
“I’m in a world, I (the Player) don’t know a lot about this world, or how things work. However, my character might know things about it. A Learning roll will reveal anything my character could have learned through research or study. A logic roll will reveal anything about the world which can be discovered via tinkering / working with the tools at hand.”
So the reason I wouldn’t remove the Logic attribute is that it does NOT represent intelligence, rather it represents how good you are at figuring something out. If you’re in a tomb that has a magical trap which was specially crafted (perhaps the trap itself is an artifact in its own right), a Learning roll (the only attribute that some might try to use as a replacement for Logic) will not help you disarm it because it does not matter how many books you’ve read, this trap has never been documented. This is an example where, I would not allow any attribute besides Logic to accomplish the task of disarming it.
I’ve updated (but not published) the Logic and Learning attributes in the rough overview of them:
Learning - Recall facts about history, arcane magic, the natural world, or any information you picked up from an external source
Logic - Innovate a new crafting method, decipher a code, jury-rig a device, get the gist of a language you don’t speak