This is, of course, how oracle and others earned its reputation. These things and worse really happen. Obviously nobody wants this when they pay for better.
I agree with another commenter that in the long run, it'll end up as OSS + support from a 3rd party consultant or vendor that is commercially aligned with your success.
It has taken a very long time to convince most IT to behave like a branch of business that can create new value. Once that shift happens fully, we'll see the "keep the lights on at all costs" mindset change a bit in favor of truly measuring ROI and true total cost of ownership. For most large companies this has never been done.
Years ago, I worked on a project that used Oracle's BPM product. It was the only time I've worked on something where the team had a direct line to vendor support. When we had issues, all they ever seemed to do was ask for more logs, over and over again. I think they were hoping we'd give up and close our SRs.
Luckily, I got off that project pretty quick. I later learned that they 1) rewrote their BPM product and did not offer a clear upgrade path to the new version, and 2) planned to end support for the old version in a few years.
As a developer, the promise of vendor support doesn't ease my mind very much.