When a bike is under 15 pounds, adn with superlight race wheels and race tires, saving a few ounces gets really tough to do without sacrificing durability. So 68g = 0.15 pounds is very significant in that context.
Comfort? I’ll update my report in a few weeks, once I give it a chance to break in. The amount of padding seems perfectly reasonable as compared to my existing Bontrager saddle.