Tell that to a company as big as Microsoft, remember Vista.. Or windows 8 1st release, it's not a matter of releasing crap software but are they able to fix it.
The 4k has its flaws. Yes.. It's been out for a while and the latest piplay version has taken over a year to fine tune to this degree.. And yes it's far from perfect. But there has been improvements along the way.
With Vista.. Microsoft sold it.. Everyone hated it did they patch it.. Not much.. They decided to release a new version.. Eventually!
In reality, the only issues I see for the 4k and what I would like to see is
. Ghosting improvements
. Brightness/contrast/gamma improvements
. Installation improvements/ version management to roll back if needed
. Better debug so we can diagnose issues ourselves
. For some (not me) some drifting issues