Yeah, I agree. FWIW, I've been participating in Linux Foundation's technical events since late 2012. Not everything they do is golden (w.r.t coordinating with open source communities or partnerships with companies), but for now their strengths outweigh their weaknesses.

AFAIK, they provide only administrative support (payroll, HR, etc). That's not really "much of" the work on Let's Encrypt.

There's a whole lot of other facilitating not included in that.. like infrastructure (hosting, development, test), management, technical support, etc.