This was back in 2003, way before the Leetcode crap had taken on small companies.
The FAANGs brought this style to the EU but it's not as [dynamic programming-level] crazy yet. Interviewing in Europe feels more humane while here in the States it's gives you a distinct mechanical taste. And Europeans are more likely to discuss relevant tech and previous experience with it.
From what I have seen take home tasks had been popular in the EU before they became more common here.
It's not even a glass ceiling, it's a full on concrete slab over your head. Management is completely sealed off depending on your Alma mater.
So yeah sure, the interview process is relaxed and gentle because you basically wouldn't even be given a chance if your education/credentials weren't enough for a given position/salary .
At least the American way gives you a chance to get your feet through the door at almost any level. That's why the interviews are harder, you get a chance to get a really high paying job without having to go to say, Polytechnique Paris. Obviously graduating from Stanford will probably help you a looot still, and your Alma Mater... matters. But you can get by just fine with a diploma from a state university, it doesn't completely shut you off from those very high end jobs. And if you don't want those SV-tier jobs and aim for something less competitive, the interview process is usually just as "humane" and laid back as in europe.
I don't know about the rest of europe but I don't think americans realize how "hierarchically stiff" France is. Like sure you won't get to leetcode for a 300k job, but that's because you won't even make it past the CV screening.
I can't preemptively learn every framework that someone might ask you to use in these practical assignments, but I still think that I'm a fairly strong candidate (let's say top 10% of my graduating class).
I ended up at a company that asked more generic (but harder) questions that I could actually answer.