Not really, unless the intent is to discriminate against immigrants to the US / people outside the US / people who went straight into a career from high school.
It looks like the service is targeted at students (US based) and academic researchers. If this is the case, the the email filter makes sense... especially for a launch. It’s not perfect, but a good start.
That was when facebook was meant as an internal platform for colleges though, I don't understand why a platform for hosting bios/resumes publicly would want/need that restriction.
Early in my career I made an access log analyzer, 2005ish. I never browsed the web normally after that. That’d be a good primer exercise for people learning to code, with lessons beyond coding in itself.