Wow, that's a pretty horrible experience. Weird too since AFAIK recruiter/recruiting coordinatiors comp tied in some way to shepherding the successful candidates through the hiring process.

Me and a friend of mine interviewed in Nov and passed HC in Dec 2019 as well (different recruiters between the two of us). Our experience was different from yours: Immediate timely followups from the recruiting coordinators, team-matched and hired in the same month. Hopefully our experience is more common...