Talk about nonsense. One of the biggest criticisms of ENT (other than being an abysmal concept), was the constant tossing of continuity or retconning anything whenever it suited the hair-thin "writing."
The page you link to is nothing but nit-picking. Not that there's anything wrong with that -- Phil Farrand's Nitpicker Guide books are some of the most read books on my shelf -- but there's nothing on that list that persuasively argues that Enterprise
was any worse at sticking to continuity than any other series in the franchise.
If I had to pick a series that was bad at that, it would be Star Trek: Voyager
or the original series itself, not Enterprise
What you seem to miss is Zombie's hardline stand that TMP is not the same continuity as TOS--including the characters.
That position doesn't reflect the posts that I've been reading in this thread.