When you say that "most of the innovations [...] have been widely seen in the sysadmin community as negative", well, that can only be true in your own sysadmin community. If you replace "innovation" by "contribution", and make the list include everything RH works on (SELinux, NM and systemd are really a tiny part of it), the sentence becomes factually incorrect, even in your own sysadmin community (I hope).
Also, systemd was not created by RH (LP was not employed by RH at the time), and SELinux is from the NSA's TRUSIX. Labeling SELinux as a "negative innovation" is very weird (not that whole sentence isn't).
When you say that RH's only "positive tech" is Ansible, but that it was an acquisition, that's true for mostly everything RH participates in (Ansible, but also systemd, OpenStack, Ceph, CoreOS, GlusterFS, KVM, LVM/DM, gcc, gdb, systemd etc... were acquisitions or acqui-hires), so I really don't see your point. Does the fact that all of this software originated from somewhere else than RH negates the existence their engineering culture ?
EDIT: made quotes inline