From my experience with running EA at Georgia Tech, I think the main factors are:
not prioritizing high-impact causes
not being interested in changing their career plans
lack of high-impact career opportunities that fit their career interests, or not knowing about them
not having the skills to get high-impact internships or jobs
Is the application form “EAGxBerkeley, India & Future Forum Organizing Team Expression of Interest” supposed to have questions asking about whether you’re interested in organizing the Future Forum? I don’t see any; I only see questions about EAGxBerkeley and EAGxIndia.