You probably need to ask NNG (or maybe HERE) about that, but I would speculate perhaps
1. Whoever got those .spc didn't have access for other countries
2. NNG didn't have resource to make/verified alerts for those countries
I'm still waiting for North America .spc's from them. It's odd that France doesn't exist in that release because it is there for before and after that release.
Sorry no Germany nor Croatia.