Developer previously stated numerous times that it would take "hundreds of hours" to reach the "center of the galaxy (he misspoke and said Universe earlier...)".
Murray said that for typical players. This guy is by definition not the typical player and quite likely rushed towards the centre to reach the bragging rights of that particular goal, after all finding a planet isn't exactly a unique feat. Thereby skipping most of the discoveries, lore or sheer "it's just an interactive screensaver but damn it's pretty so I don't care" moments.
Mind you, people watch train footage. I've built the same repetitive, mundane, boring mob farms and whatnots as everyone else in Minecraft and I enjoyed every single block of it. So I'm pretty sure I will love No Man's Sky.