Re: was NX01 ever referred to as 'The' Enterprise?
One more time: TOS's usage was either wrong to begin with, or an outdated usage that's no longer valid. Either way, it's not something to cling to. The correct naval practice, at least in US usage, is not to use the definite article except before "USS." It can be "the USS Enterprise," but it should not be "the Enterprise."
Under what basis do you claim this?
“We have to learn again that science without contact with experiments is an enterprise which is likely to go completely astray into imaginary conjecture.”
- Evolution of the Solar System, NASA 1976, H. Alfvén & G, Arrhenius, p. 257.