A VC might want variety and advise people he will vote with his dollars for variety, because he's not funding the same thing as everyone else is.
Being first and the winner requires a lot to line up, so it shouldn't be the only, default, or best setting. Pursuing this is optimizing.
Also a message from 10-15 years ago might not reflect the same context as today.
"A VC might want variety and advise people he will vote with his dollars for variety".
In other words, what's good for Peter Theil might not be goid for you.
Yup. Therefore postulating it as a truth or standard is ok if that's what you agree with and want to also pursue, but it's important to keep in mind that valid goals are a spectrum.