Considering they've been showing this message ever since GDPR went into effect, it's clear that European visitors aren't important to them at all.
Of course European movie fans are important, in fact, you’re probably gonna get a free pitcher of beer if you say you came all the way from Europe and going to the draft house was part of your bucket list.
Realistically, most Europeans interested in going to an Alamo Drafthouse are already in the US, so they won't see that message.
edit: I'm unsmart