You know, I think the crashing demo is more compeling game design wise. I watch it and have an itch to pull up a bit the nose and give a bit more throttle. That itch is the demo pulling me in, causing me to want to play. The perfect landing is meh, clearly the computer can do it, why would I bother picking up the controls? Interesting that the developers disagreed enough to roll a new chip, at what I guess was a cons…
My understanding was that the "perfect" landing was first, using the old version of the chip. Then the new chip changed the physics calculations and the demo replay became a crash landing.
So the "crash landing" cartridges are the newer revisions and I'd guess the motivation to change the ship was a simple "update this dependency to the newest version".