That's wasted energy, not excess energy. If we're going to invest any resources into doing something productive with it, it will be towards doing something profitable. Who's going to invest a ton of money into infrastructure that doesn't pay anything back?

And I don't see how gas flaring has bearing here. If it's not profitable to capture carbon fuel that's right there, in the form a widely traded energy source - why on earth would it be profitable to burn it, to power a generator, to extract CO2 from the air, to turn it back into carbon fuel? You just end up back where you started. Surely it's easier to simply build a plant that can handle higher pressure surges, and ship the gas as-is. But it's not profitable.