The email is a 'rant'.
It's a 'list of broken stuff'.
It's not:
1) identifying underlying first principles of design or UX that have been broken
2) not identifying which parts of the system may have resulted in the negative outcome
3) not reference for either operational or cultural that were braoched or need to be address
4) not at all cognizant of systemic concern at all.
5) didn't allocate responsibility, hint at how to organized a response, what structural issues need to be in place.
It's actually a really bad an embarrassing lack of leadership.
It's basically 'user rant' - not what one would expect from a leader.
He 'made a list of complaints and threw them onto the org.' - who are obviously being 'reactive' and moving in a bit of a frenzy.
'Dear Leader, doesn't like how the picture frames are set in the office! Fire the picture framers, everyone get out your rulers and fix the picture frames'.
This is really common and it happens because people have this magical belief that the 'founder' or 'ceo' has 'special powers and insight' and then issues roll down hill among sycophants and yes men, trying to appease.
A good example of 'leadership' would start out with 'I take responsibility for this', hinting and the possible source of flaws, where in the process those things should have been caught, an attempt for accountability in certain areas (divide the concern), a requirement to convene on this issues and make sure everyone understands what's important. Especially and including the fact that anyone responsible for a product actually has to 'use it' aka dogfooding or else etc etc..