Jordan, did you take a look at Edward's link?
The info you provided, Jordan says nothing about microworms being worms or not. All your info says is that they are prolific, which means that they are productive, and that they are smaller than brineshrimp. I don't see where says in the info you provided that they aren't worms. They are a type of nematode, which is a type of worm.
As for Edward's link, it provides some good info about microworms.