I didn't see that part of the post, but it didn't explain why Nigeria is excluded since casinos and gambling are allowed in Nigeria. The website is not being truthful.
This is a bit strange indeed and if I'm not mistaken this is the only online casino that restrict Nigeria, at least this is the first one I know of! Their explanation that they need to comply with laws and regulations doesn't make sense since gambling is not prohibited in Nigeria.
On another note, I believe the main page is a bit too loaded which makes navigation a bit slow. Not sure if anyone else experienced the same thing or it's just on my side!