I went for a interview with Facebook recently from India and had a really different experience. The CBP guy was really gentle and just reminded me to not work for Facebook in my days there and that's it, I was in USA. I just had a small carry bag and no luggage so another one of them asked me why I have no luggage and I told them that I am only there for 3 days. I agree US can be a bit paranoid of these things but compared to people trying to enter USA I think very few face the kind of hostility the author faced.
I was one of the early users and can definitely attest the analytics + error traces work really well.
I think the major differentiator here is that many products just focus on analytics and some on errors but bringing both on a single screen gives a developer much better insights.