The thing I remember most about FJ's effort was his attempt to assign registry numbers for all the Constitution
-class ships... and to suggest that all except the Constellation
fell into line nicely with NCC-1701 just seemed ridiculous to me... What would be the odds that all the other starships were numbered sequentially when the two besides the Enterprise
discussed or seen in TOS weren't? That in itself invalidated the whole concept of him as "authoritative" regarding Star Trek concepts... in my mind he was just an interloper.