Well, there are lots of different kinds I've had whole wheat pasta that tasted terrible, but some of the cheaper brands are actually pretty okay. I prefer whole wheat to white after eating nothing but whole wheat for a couple years. White doesn't taste like anything at all.
At the very least, if I don't want whole wheat, I buy the garden-fresh kind by someone (Barilla?) which is made with vegetables and semolina and has a fair amount of dietary fiber, which is what you need to lower the glycemic index.
If people wanted to eat white pasta without the glycemic index issue, then they would have to eat it at the same time as something low-carb that has a lot of fiber. Of course, most people just threw butter and cheese or Prego tomato sauce on, or something similar with no fiber.