That would argue in favor of the 14 and UEFA on different grounds.
Take the CART/Indy split. CART took the drivers and most of the sponsors and money. Indy had the crown jewel, the 500, and kicked the drivers that didn't join their circuit out of the 500. They ended up with some fairly ridiculous winners of the 500 for a couple of years (Buddy Lazier?), but in the end, Indy won because they had the 500 and the drivers came back.
I'm not making an argument about integrity. I'm making an argument about image, which is what matters to the sponsors - and as a consequence, to the players who take the sponsors' money.
If you have enough money, you can even tell the sponsors where to go. The Masters did it. The 14 now have the ability to give the six the boot, pass whatever rules they want to enable themselves to get the money to fight, and go to war. The only question is whether or not they collectively have the will.
There's ample reason to believe that they can win the fight, should they choose to join it. Which is exactly the problem, and why I believe that a parting of the ways is a real possibility - the outcome is uncertain. If we knew how the chips would fall, the 14 would muck their cards if they're going to lose, and the six would muck their cards if they're going to lose.
Your argument boils down to the notion that the 14 are so risk-averse that they'll capitulate. That's what Woodward et al are betting on. I'm not convinced. I think that by alienating FIFA, UEFA and the fans, the ESL changed the game to their own detriment. Whether or not that's enough for the fight to be joined is, to me, an open question rather than a foregone conclusion.