H.L. Mencken once said, "There's always an easy solution to every human problem--neat, plausible and wrong."
The day after Lane's piece appeared, The Times reported that two jetliners came within 500 to 1,000 feet of each other over Orange County. Both had been cleared to 21,000 feet on the same route at the same time. How long does it take to go 500 feet at 300 knots? A heartbeat. No little airplane, no corporate jets, just two jetliners and a mistake.
We can argue endlessly, and probably will, about which sector should pay how much of the cost of operating the air traffic control system. Will altering the economics stop events like the one above? Probably not.
The problem isn't too many little planes or too many corporate jets or even too many jetliners. The problem is there isn't just one big well-defined problem that can be solved with editorial arm-waving. There are a lot of problems; too many aircraft trying to use a system that can't handle them, too few controllers, a system undergoing change, the complexity of controlled airspace, and so on.