Says who? While “grinding” is one way to learn something, asking AI for a detailed explanation and actually consuming that knowledge with the intent to learn (rather than just copy and pasting) is another way.
Yes, you should be on guard since a lot of what it says can be false, but it’s still a great tool to help you learn something. It doesn’t completely replace technical blogs, books, and hard earned experience, but let’s not pretend that LLMs, when used appropriately, don’t provide an educational benefit.