to sum it up: if you use a distro where you have to configure everything yourself it will be hard and things will break
I love ArchLinux, and used it on my primary dev laptop a while back. But you have to expect breaking changes that take some manual maintenance from time to time, and choose your update window accordingly. Maybe not really close to a conference presentation.
There isn't a shortage of distros, and the person could have chosen elsewhere on the spectrum according to needs.