I sometimes ordered from them in the last 8 years. No problems. Expensive but guaranteed valid parts. Your experience could be many things. Maybe there is a invalid permission to export this certain item to your region of purchase. I ran into that once with some serious part that also had military uses.
L2 it’s one year old. A study like that takes time. What is your point? I bet if they would do it with L3 and the result came back similar, you would say L3 is „insanely outdaded“ as well?
Can you confirm that you think with L3, the result would look completely opposite and the summaries of the AI would always beat the human summaries? Because it sounds like you are implying that.