I agree that it’s surprising. I hope we get a postmortem; I’d like to know why they are closing the doors. Lack of traction (seems like they had some though)? Trouble monetizing?
Yeah, a "why" is definitely lacking. They must have had either a monetization plan or an aggressive growth plan when they raised that money, and 5 months is a short time to prove either.
Could be internal struggles or personal reasons.