All true but there is still quite a bit of inefficiency involved if you need a team that is both proficient in deploying & running Linux infrastructure tools as well as Windows servers.

And given that this discussion is taking place in the comments section of a link to a custom-made monitoring dashboard that quite possibly wouldn't be needed* if SO was a Linux-only shop doesn't exactly devalue my previous statement.

*I have no idea whether this could be replaced with Nagios or Munin