No, Dale, what KPM and GP Seymour propose is well supported by the admittedly limited evidence available.
First point: Both empty handed systems and pole systems with outward similarities to the WC/VT/WT hands and pole existed long before WC/VT/WT be historically documented (in the era of Leung Jan or the mid 19th century).
Second point: The oral tradition left by Grandmaster Yip Man and other greats of his generation all agree that the pole system was imported or added to the boxing system.
Third point: Ex nihilo nihil fit. Nothing springs into being from nothing. There is always a precursor. It is highly unlikely that a single or small group of skilled pole fighters sat down and decided to invent an empty-handed boxing system from scratch.
It is far more probable that one or more skilled martial artists with experience in both weapons and southern short-bridge boxing realized that the core principles of their weapons, and especially the long pole correlated with the principles of some of the most effective empty handed strategy.
After all, we have all noted that other boxing systems often exhibit bits and pieces of WC/VT-like movement. The precursors of WC/VT/WT no doubt had some of the seeds of later WC, and it's highly probable that the ancestors of modern WC/VT/WT made the same observations about the relationship of these very effective empty-hand strategies to the pole system. They sought to build upon this base thus initiating the evolutionary process that shaped the WC/VT/WT we practice today.
Only such an evolutionary model can fully explain the diversity of WC/VT/WT that currently exists. In short, the evolution of the martial arts including WC/VT/WT certainly follows the same process as the evolution of human culture, languages and so forth. It is never created out of a void ...even constructed languages like Esperanto draw heavily on known sources. There is always adaptation, borrowing, and in small isolated groups, random drift. And as a product of human culture, MAs follow the same rules. "Occam's razor" will lead you to the same conclusion.
I can further back this up from personal experience as a practitioner of VT/WT and Latosa and DTE Escrima. Many years of practicing both arts has lead me to focus on common principles and strategies to the point that my empty hands and my weapons technique are now almost entirely expressions of the same fighting principles and strategy. My personal VT and my personal Escrima are totally strategically consistent.
Perhaps the real problem here is that LFJ and his opposition (KPM, GPS. Juany, et.al.) mean something very different when they refer to the VT system. I believe that KPM, GPS. Juany, and certainly, yours truly, are referring to WC/VT/WT in the broad sense, including all of the Yip Man branches, as well as mainland branches tracing their roots back to Leung Jan.
LFJ on the other hand seems to be specifically referring to a particular group of WSL-VT folks, and excluding other non WSL WC/VT groups and even some WSL practitioners (David Peterson). In fact, LFJ has pretty much written off all the other WC/VT groups he has any knowledge of as "broken" VT, and essentially not the same system as what he practices.
OK then. If what he practices is not the same system as the systems the rest of us practice (total BS in my opinion) then, logically, we have nothing to discuss.
BTW Dale, are you a WSL-VT practioner with a perspective like LFJ on the art?