Unfortunately, getting neo shrimp from overseas is not that uncommon to have this parasite. They have massive breeding tanks and just net as they need them.
For crystals, they are much more picky about slective breeding, etc.
It's too bad really, because I really have a love for neos and wish they would work more on health and selectively breeding those for different vars. Unfortunately, it's up to hobbiests like us to make up for the lack of interest there with neos.