Daemontools is not a part of the base system, so it would require to install it additionally. The post I made is for cases where the uptime does not matter that much, and where you do not want to spend the time to install and configure additional software. And the 10 minutes was just an example, you could let cron check every minute if you want. But as I wrote, in my case it does not matter much. Places where I would use daemontools are places where such a reboot for an unknown reason which I described would not be acceptable (number one priority would be to find out the reason of the reboot and do something to fix the problem).