[thelambentonion]

Big planes have an order of magnitude lower complexity than a rocket of the Falcon 9's caliber. That's a somewhat subjective statement, I'm sure, but even if it weren't the case there's so much variation between each Falcon 9 I'd be surprised if they could crank that many out with any reasonable amount of QA.

[msl]

The Soviet Union managed to produce their Soyuz-U rockets at a higher pace than that some four decades ago [1] while achieving a success rate of > 97%. Sure, it's a different rocket with different capabilities, but it was also a long time ago.

[1] https://en.wikipedia.org/wiki/Soyuz-U

[NegativeLatency]

Big planes generally have better failure modes as well, and humanity has more experience in producing/operating planes than rockets.