Not that I don't agree with their opinion, but being a language creator mostly like greatly biases you towards over estimating the usefulness of certain feature

Not that I don't agree with their opinion, but being a language creator mostly like greatly biases you towards over estimating the usefulness of certain features. As such I wouldn't hold language creator's opinions on the value of certain language features over say the opinions of CTOs or VP engineering of large companies, especially as it relates to productivity, maintenance and onboarding.