I hear ya, Lola. I was told by my sister that all cats do that. None of the vets I went to seemed to think it was a problem, or sold me "prescription" food or drugs. I had one vet who told me "a cat will throw up as soon as look at you."
So it took me a LONG time to question, though in my heart I knew it couldn't be normal to vomit/regurgitate several times a day/night, EVERY day/night.
Personally, I think diet is the biggest cause of these problems. Hopefully, thanks to sites like this and the one you posted about, more people will learn about what our carnivorous furkids should be eating, how important species-appropriate diet is, and makes some changes in what they feed.
Thank you for sharing the link!