Yeah, I don't think it's any kind of discrimination based on my nationality, but just might be more of a headache to interview and hire someone who lives so far away. Thanks for the tip on Tweakers, and I'll send you a PM!
^ This is likely a large component - hiring in foreign workers who will need visa support is a lot of effort and money. You may need to have a niche skill that cannot be found locally, for hiring you to be worth the additional expense over a local candidate.