Why does static site of Europe's parliament need big cookie banner? Or is that the parliament which created this law doesn't know what you know or they are doing "malicious compliance".
Because they want to track people and they need consent for that.
Clearly they are just trying to rile up users against the EU.
Because they use a commercial service (AT Internet) for analytics and visitor tracking as stated in their cookies policy and cookie inventory. This information is readily available through the cookie banner.