As someone that makes my own keyboard firmware, 100% agree. For most people, typing speed isn't a bottleneck. There is a whole community of people that type faster than 250wpm on custom, chording-enabled keyboards. The tradeoff is that it takes years to relearn how to type. Its the same as being a stenographer at that point. Its not worth it for most people.

Even if there was a new layout that did suddenly allow everyone to type twice as fast, what would we get with that? Maybe twice as many social media posts, but nothing actually useful.