Speaking only for myself, as someone who has no desire to go faster than 80, I agree with you there's sufficient speed available, and I believe you're correct about why speed is limited. I simply want a direct, honest answer, not some obfuscatory blather about the capability of the cooling system.Haven't we been here before? The bike was designed for international markets, not just North America.
There are no speed limits in the home country of Japan above 120 km/h. So, a limit at ~180 km/h gives you all the headroom necessary to travel on highways. Anywhere.
Europe has the same limits; passed in 2019 and going into effect in 2022.