Nice straw man you got there. I didn't even talk of init scripts vs binary crap in my message. But I'll bite.
Init scripts have been the best solution for over 20 years, not because distro maintainers need to maintain them, but, unlike huge binary hydras obscuring the functionality, they are easy to debug and fix by a sysadmin with only small, standard and tested tools, like vi, cat, etc. When systemd breaks, you are on your own. Either you can take out the disks from the machine and try and open the obfuscated logs in another PC, or you can boot a full distro on a usb stick and do the same. In both cases, pray that the logs haven't been corrupted, as it usually happens when systemd fails to shutdown or reboot. But worst, and more important - if it is a bug in systemd or some of your use cases that isn't supported by the devs, you are well and truly fucked.
You can fuck things up with scripts, sure. The power they give might be misused by some "windows admin". But real system administrators prefer scripts to a unfixable blob with init files, because they know that scripts allow them to be in control of their systems and of being able to support their use cases, instead of having to beg to some rude, conceived developer, for a fix that most of the times will be refused because said developer doesn't see the use. And even if the request is gracefully granted by the magnanimous dev, then the sysadmin will have to wait for months until the package is available for the distribution he is running. A really good idea...
Replacing an (imagined) attack vector with a huge, real one, and losing functionality in the way can only appeal to those who have never known anything else than windows and are afraid of the complexity and the power of a truly configurable system. Really, replacing a simple init with a great collection of scripts by a huge monster, which has everything from process management to IPC to time and date to networking to binary logging inside or tied up to it? Can anyone who is not deluded or a liar claim that it isn't a huge security disadvantage?