Yes, I agree there are areas where it's undeniably useful[0]. But that's not going to satisfy market expectations. Devtools is not a large addressable market. It's hard to find examples of real-world applications, which don't totally suck and users don't hate, outside of devtools. I can't think of a single one off the top of my head.
[0] I'm willing to concede this point, but I still maintain nobody has really shown it to be true in any rigorous sense. Maybe that doesn't matter. If people feel it makes them more productive, that's good enough for me.