No two people fight exactly the same in any given concept based art, so even if you did rigidly adhere to the boxing, fencing, WC regimen as a core by the time you mixed them and 'made it your own' it could be unrecognizable from someone else who did the same. So both groups are essentially right and need to shut up about it all.
One thing confuses me though - how do you figure Terri Tom's book is indicative of the OJKD mentality? In her (long winded) book about the straight lead, she pretty much dismisses WC (along with Xing Yi and other) punching as wrong, which Lee never really said. Just curious.