It's a solution to a problem that doesn't exist.
If your fork flexes too much...you have a crappy fork.
Putting a big axle on a crappy fork is like cutting off your feet because your pants are too short.
Run mtb tyres for winter cack resistance/comfort/grip.
Run discs and proper spoke numbers.
Lot's of reasons.
Duke....you don't have to leave on my account
Spade...I guess some wheels are better than no wheels.
You will be limited on tires...about 38 ish
And I am building a cross bike that will see time as a dirt road bike...so I will be using my 29er wheels on it with cross clinchers. But my race wheels will be tubies.
So....I guess maybe...if you already have a bunch of 15 t/a wheels and your not worried about weight.....the fork sort of makes sense. I don't see Whiskey as an industry driver though....I don't think the cross and road crowd are going to buy the 15 t/a thing
I think the dirt road/ off road drop bar bike is going to be a very different creature and category from a true cross bike.....could probably use it's own forum already.