Probably built by a web gency who added tracking, perhaps even GA, so there was need for a cookie pop up banner. Why that website would need tracking and profiling is beyond me.
I think every website should understand how and by who their website is used. I don't consider this "spying." If you walk into a brick and mortar store the shopkeeper has every right to count that you came in, and watch where you go in the store to optimize it. The web should be no different.
Fortunately there are in fact cookieless analytics systems that people can use to get this information why not being required to have the stupid cookie popup.
Yes, a brick and mortar store can absolutely profile you without consent if they wished, and so can a website. The only condition is not collecting PII.
[1] https://europa.eu/