Unfortunately this seems to be a bug in the website.

For any representatives that have no position / position unknown, rather than the website showing them as "Unknown" as you'd expect, it just assumes their position is the position of their government's EU Council representative supports this.

Many national representatives are aligned with opposition parties within their own country, and as such it's highly likely their position will deviate from that of their government, so this is a pretty bad misrepresentation. Highly misleading.