Astonishing to me that someone with 20 years' experience in any industry could have so little perspective. Obviously there are inefficiencies with big companies, but complaining about needing to do documentation, or basic project management?

The writing is smug and shows no self awareness - it seems to me that the author cannot recognise that there may be other priorities than exactly what is in front of them and therefore everyone who disagrees with him must be wrong.

It is good that the author has found something that suits them better.