There is a lot of fairly meaningless waffle in those points in an attempt that cover over that there is no evidence that Jehovah appeared in the New Testament. If it didn't, then the rest falls flat.
The topic of the word Jehovah is the one that Watchtower show draw upon more than any other to ensure their longevity, as it is a good differentiator from other religions. But it opens a can of words for anyone that comes to realize their dishonesty on adding Jehovah to the New Testament.