Is there any product that wouldn't fit that definition?
Products that are clones of other successful products. Which is tens of millions of products. There aren't many industries with single vendors. I think the definition perfectly captures how most people think about innovation.
It might not be much of an invention, but it is an innovation.
So if I make a clone of some existing product and give it to users that never used that kind of product before, I'm being innovative?
Absolutely. Pushing a product to a new group of people is innovation. It's innovation in the business aspect, not innovative on the tech side.