The MBA is a bare necessity for getting the gig: having design experience is not. So it is, indeed, compelling to see that fairly rare combo at WotC now.
That's only true if A) that design experience is relevant, which it isn't (since video game design is dissimilar from tabletop RPG design), and B) that the two of them somehow endow the person with greater capabilities than either one alone (which as noted is a special pleading on your part).
As to examples: Warren Spector, Zeb Cook, Lawrence Schick, Jeff Grubb, Paul Reich III, just off the top of my head and I know there are more if I thought about it for a second.
Which are examples of tabletop RPG designers moving into video games, not video game designers moving into tabletop. Again, even assuming that these are representative of those two necessarily synergizing (which isn't axiomatic, since it ignores the stories of people who've tried to make this transition and failed), you can't say that because A leads to B, that means that B leads to A. Or at least, not without demonstrating how and why that's so.
Read any text book on how design works, I won'tdo your homework for you:
Again, Hitchens's razor cuts this argument down. If you can't meet the
burden of proof when you make an assertion, then your assertion can be dismissed. Saying "I'm right, go look it up" means that you're ceding the argument.
the process is indeed transferable between industries, so a designer executive is an interesting development.
See above. You haven't established that it is, and your examples don't speak to the type of transfer we're talking about with regard to Hight (video games to TTRPGs) compared to the other people you cited (who are TTRPGs to video games).
I said that I was not counting those in the first post, you close read is flatly incorrect and bizarre.
Again, looking at
your post, you said "not even counting" rather than "not counting." Those two terms are not identical, with the former meaning that you're noting something in addition to what you are counting, just that they're supplementary. The only bizarre thing is that you'd try to say otherwise.
Most people at WotC work at a videongame studio, making video games. That makes it a video game company. And that isn't going to change trajectory, frankly.
No, it doesn't. As noted before, it makes WotC a company that
wants to transfer into being video games. Whether or not they succeed remains an open question, though their track record on this remains uninspiring.