I've seen this in other industries, more than once. Someone invents the jet engine, but it gets rejected because it doesn't meet the propeller spec; the lightbulb doesn't meet the kerosene lamp spec, blah, blah, blah. I spent a couple decades working with a team moving our structural titanium alloy aerospace components to the medical implant field, which had been using stainless steel. I eventually concluded that FDA approval is the stamp of obsolescence.