As a workaround you probably could use a parcel forwarding service:
https://www.forward2me.com/
https://shipgerman.com/en/
https://www.no-border.eu/
I have no experience with these providers, but I've used similar services in the past and had good experiences for the most part.
But yeah, it really sucks that they aren't able to ship to other EU countries, while other shops can.
As a workaround you probably could use a parcel forwarding service:
https://www.forward2me.com/
https://shipgerman.com/en/
https://www.no-border.eu/
I have no experience with these providers, but I've used similar services in the past and had good experiences for the most part.
But yeah, it really sucks that they aren't able to ship to other EU countries, while other shops can.