'Course, this (scrubbed) mission was the first test flight with humans aboard, so Bob and Doug were test pilots. Their job was to observe how the automation performed and report back; and to take over if Hal failed (as long as the touchscreens continued to work).

The first test flight of the Crew Dragon sent a mannequin to the ISS, where it docked perfectly. Here's an ISS crew member snapping publicity photos for SpaceX:

(StarMannequin to the left). Thus, Demo-1 proved conclusively that the Crew Dragon doesn't need a crew, just a cargo of human flesh.

Considering all that, I guess Bob N' Doug were to prove that human flesh could be delivered to ISS aboard a Dragon. And then SpaceX Commuter lines would be open for business.

I think you're setting the bar too high, judging the Crew Dragon by the standards of "a true man-machine symbiosis capable of exploring the solar system". That isn't what it's for, it's just a commuter bus to schlep humans to ISS. That's the contract Musk signed with NASA, and I expect he'll deliver.

To be fair, here's the interior of the competition, a Boeing "Starliner":

OMG, is that a fire extinguisher I see? And looks like another touch screen bank.

Just had a thought: Maybe NASA mandated the touch screen interface, and they're mandating a common user interface? That would make a hell of a lot of sense, allowing astronauts to receive basic training on a generic spacecraft interface.

I would expect SpaceX and Boeing to bid on the eventual Boots Back On The Moon Again Tour(tm) using more sophisticated designs based on the chassis they're currently testing. Makes sense, improves reliability and keeps costs down to not start from scratch every time you define a new space mission. The Crew Dragon is derived from the cargo model, and the next one might come closer to satisfying your (our) hunger for a "a true man-machine symbiosis capable of exploring the solar system". Patience.