I don’t really understand the criticism of Meetup not innovating enough. People create meetups and other people attend. Yes the UI could be better but, fundamen

I don’t really understand the criticism of Meetup not innovating enough. People create meetups and other people attend. Yes the UI could be better but, fundamentally, what innovations are needed? What is wrong with Meetup just continuing to offer the same basic service, give or take a few incremental improvements here and there?