It is purely out of spite. They like to rant every time how the EU is blocking progress. They are using it to turn sentiment of iDevice-using EU citizens against the EU. It's interesting how Apple rolls over when an autocratic state (e.g. China) asks, but are trying to mobilize their users against regulators, do malicious compliance, etc. when it's democratic states regulating them.
As a Mac user since 2007 and iPhone user since 2009, this behavior of Apple disgusts me. (Yes, I know - vote with your wallet. I switched from Apple Watch Ultra to Garmin Fenix and do have a Pixel with GrapheneOS.)