How is this related to anything, let alone your job?
As I'm sure you know, systemd grew out of Red Hat, and Debian as most other Linux distributions have adopted it in lack of a better alternative. There is no grand scheme to it other than getting rid of SysV.
In a few years time uselessd, nosh, dmd and the many other systemd-lookalikes in development have matured and there will once again be diversity in init land.
The self-styled "uselessd guy" is present on this page, and xe has gone on record some months ago that uselessd is a "dead project". Replace uselessd in your list there with s6-rc and System XVI, therefore.
And replace "systemd-lookalikes" with service and system management systems, while you are at it. Neither of those is aimed at looking like systemd, and it would do them a disservice to miscategorize them as such.
As I'm sure you know, systemd grew out of Red Hat, and Debian as most other Linux distributions have adopted it in lack of a better alternative. There is no grand scheme to it other than getting rid of SysV.
In a few years time uselessd, nosh, dmd and the many other systemd-lookalikes in development have matured and there will once again be diversity in init land.