Well. You have a point. Never ride faster than your guardian angel. Nonetheless, if instead of riding 30km/h on Tourance rubber, you can ride 70km/h with the same confidence on a better tire, then it's a win win. I've done 4 hours of dirt this Saturday with some okay Tourance. Honestly, they were not confidence-inspiring and had no grip at all. One can use any tire on thin gravel with hard pack base. Add soft sand or a freshly graded surface, and you need to rethink your tire choice.
I don't doubt you're right - for some conditions - but unnecessary for the TLH. The knobblies on my Nuovo Falcone don't make much difference regardless of the road. But................sorry Todd and Dylan, that's enough thread drift from me so I'll shut up.