What you're claiming is at odds with the real situation.
The people who are most against systemd are the serious, professional, often long-time Linux system administrators who have to provision and maintain production Linux systems.
Maybe it's okay if systemd and PulseAudio fuck up your single Ubuntu workstation. That's not a luxury that these admins have. They need their Linux systems to work reliably all of the time.
This level of stability was very achievable in the past, before a distro like Debian adopted systemd. But now that it has, its quality has dropped off precipitously. Yes, this completely unnecessary drop in quality will make responsible people very angry!
There is no conspiracy, like you've convinced yourself that there is. There are just many experienced sysadmins who need Linux distros that work. With all of the major Linux distros switching to systemd lately, and the many problems this has caused, these sysadmins are left in a bad position.
They can't wait a decade for the problems to be sorted out. They need to act now. Many are doing something they probably should have done years ago, and are moving to FreeBSD and OpenBSD. Some are even moving to Windows, as unfortunate as that is.
The robustness and reliability of Linux systems aren't "pet needs". They're the very factors that will, if ignored, result in Linux losing its current position. A robust and reliable Linux kernel is useless if the init system and userland stack running on top of it is full of problems. The entire package just won't be useful.
I'm not sure it's precisely that, developers want systems to improve so they can add new features and capabilities, but if I'm an admin then fundamentally all I really care about is reliability and uptime. For them a perfect OS never changes at all outside of bug fixes.
Init might be a massive PITA but it's a PITA they've already got working and trust. Their hatred of systemd might be based on very legitimate stability concerns, but it also might be a very rational response to a change which brings a minimal but costly risk, and an almost non-existent benefit.
However, current Linux admins are not the only people affected. Linux users, developers, and future admins will benefit from an improved init system.
Btw, I'm skeptical that those admins will actually switch OS's for precisely the same reliability concerns that make them oppose systemd. This is probably the same reason Redhat is able to push systemd on their own customer base.