The CTO of an org should be technically competent. If you are not technically competent, you have no business being a CTO.
If a civil engineer makes an egregious mistake and a bridge collapses, it's not toxic to say an egregious mistake was made.
And, in an organization, if you are unable to recognize and call out mistakes (in a respectful, constructive manner that is), you're a failed organization.
Rookie mistake is certainly not a constructive way to report on this problem, but it is true.
If a civil engineer makes an egregious mistake and a bridge collapses, it's not toxic to say an egregious mistake was made.
And, in an organization, if you are unable to recognize and call out mistakes (in a respectful, constructive manner that is), you're a failed organization.
Rookie mistake is certainly not a constructive way to report on this problem, but it is true.