I'm not Catholic. Some of my fellow Protestants do criticize the Catholic church on this point. Personally, I think it's not a big deal, it's just a case of using a word with two slightly different meanings.
Like, forms that asks for your address typically ask for street, city, state, zip. "City" here clearly means the name of the community you live in, regardless of size. But in other contexts we use "city" to refer to a particularly large population center, like New York or Los Angeles. So the word "city" has (at least) two related but distinct meanings: any population center, or a particularly large population center.
In the same way, "saints" is used to refer to any Christian, and is also used by the Catholic church to refer to Christians who have demonstrated particularly extraordinary faith.
I'd be interested in hearing a more detailed response from a knowledgeable Catholic.