It means what its says.
Countless man hours wasted on Linux for no good reason than "its free". Except its not. People's time isn't free.
Thats the #1 reason I switched to Linux. I was wasting so much time keeping windows updated and working. Linux has saved me so much time and frustration over the years by not breaking something every other update like Windows does, by not getting infected with malware despite not running as administrator. Just because one or two distros that try to be windows like have window like issues doesn't mean all of linux is like that. Or to put it simply just use with slackware already
A bit of time is spent by the rasbian maintainers taking debian and stripping it down to make it run efficiently on the Pi (one of the reasons I ruin slackware-arm on mine is its already efficient) so thats why I think a Amiga/AROS could find a fit in the Arm world as its already a lightweight OS.