It means the problem is not just 'things are hard at scale', like the parent comment suggested.

The level of excuse-making for Musk's bullshit gets really tiresome in these threads. Production car looks like a Pontiac Aztek rendered on a Commodore 64? New things are hard at scale! Prototype breaks when you hit it at launch event? New things are hard, this is fixed in the new model!

There's nothing cynical or malicious in being tired of a pathological level of lies and hype from a person who has real achievements to boast about, if he could just control the need to promise the sun and stars to everyone in Q2 of next year.