Well, I've heard stories about inspectors that require more than what code requires. For example, carpeting. Carpeting is not a health or safety issue (assuming the underlayment is safe) but I've heard of inspectors that require it for occupancy, and would fail bare floor.
No, obviously he requires the house also meet code. There's more to an inspection than code, though. And there's more to an inspection than the electrical bits too.
It proves that he doesn't blindly follow the code, and that he's willing to learn, and that in the end it's HIS responsibility to make sure the house is safe, not some book's.
Sure you can. Code says 15 amps, I can wire to 20. I have more outlets than "every N feet". I have GFIs where they're not strictly required.