Interesting, the asymmetry looks a bit odd to the eye, but it makes sense when explained by the manufacturer.
I have seen tire technology come a long way through the years (I'm 67), the bias ply tires I drove on offered little traction compared to modern radials, and talk about tread life....we used to get 10,000- 15,000 per set (when not hot rodding), now 50,000- 60,000 is common. Every Fall meant switching to snow tires and Spring meant back to conventional tires. Modern all season tires put an end to that ritual.