The posting was about 11 months ago. I agree that the default twm environment is dated. The suggestion of importing golem into base is a reasonable one. I've had a look at the golem source and there is certainly lots of hair on it. The default install is sub-optimal. But it is BSD code so would fit comfortably into base. By the time it was decruftified it would almost be a fork. The page indicates the the code might be made available to NetBSD as a donation. It could be a reasonable starting point for a better default X landing zone.
The questions I have are: Is this still relevant? Is anyone looking at it by now?