If you're Bitnami it probably made sense to do it the image the way they did, but for everyone else, it's just a massive complication.
Personally I don't understand why anyone would have opted to use the Bitnami images for most things. They are really large and complex images and in most cases you'd probably be better of building your own images instead.
My guess is that there's a very small overlap between people who want to maintain Docker images, and the people who chose to run Bitnamis images.
These aren't just for your laptop, they're supposed to be able to run in prod
I'm still stuck with 3 bitnami charts that I keep updated by building from source, which includes also building the images, all on our private registry.
At my previous company, we used it because of the low CVE counts. We needed to report the CVE count for every Docker image we used every month, so most of the images were from Bitnami.
There are many enterprise companies freeloading on Bitnami images, and I’m surprised it took Broadcom this long to make this change.
I would argue that if you run Kubernetes, then you frequently already have the resource to maintain your own images.