Totally agree he's not the only person doing great work at his companies. Also really weird to me when people are confident he's not the genius one man band he appears to be, and then immediately point the credit towards another Singular person like Gwynne Shotwell. If we can say it wouldn't be doing great without Gwynne Shotwell, it should also be clear it wouldn't be doing great/even exist without Elon.
You're either shifting the goalposts or are misunderstanding what's being said. No one at all said that Gwynne is "a singular person" who is doing all the work. Instead Gwynne was being used as a counter example to show that Elon isn't the only one working at the company or doing all the organization.
The only issue being discussed was the original assertion that "he's the one coordinating it all", and pointing to a person doing coordinating seems like a great way to prove that wrong.