And he's not even right. There is no hassle only if you take plenty of risk and rely on a random crappy acme client to do it well, its dependencies to always work, disks, OSes, servers not failing, acme protocol not changing and not deprecating anything.
Otherwise you need some infrastructure: logging, monitoring, some way to manage upgrades, backups, testing recovery, oh and those private keys are better not be leaked anywhere, so you need encryption for backups, which brings key management and so on.