I agree, though my biggest headache has been with systemd handling mounts. You have to modify a ton of units to add After and Required to make sure the NFS shares you have in fstab get mounted before starting services that depend on them. And then if the package maintainer updates their unit files, all your changes disappear!

Such a huge headache compared to the classic init.d that mounted everything very early – with just the occasional “boot delayed a couple seconds because your share was offline” or such.