Every sector has new promising tech. The cost of gearing up and...

Every sector has new promising tech. The cost of gearing up and converting users is immense. It takes years and huge money to do this. Tech is littered with better ways to do things, but dont always hit the markets. 95% of patents never become commercial. I have had patents and developed commercial products from scratch. Its harder than people think, even for simple products. Nothing is simple. If you look at the likes of LIS, you can see the battery tech has taken 11 years and tens of millions of dollars to get here. Its still some years away from real commercialisation even though it is better. There will be dozens of others along the way. Orbital engine was another, it made sense, was cheaper and used less fuel. The car companies ignored it. The cost of tooling wasn't worth the trouble. I am not saying that the tech that you mention, wont get up, but the overall vibe is diffidently leaning on REE for many years to come. Iron Nitride may get a tiny slice of a growing market for certain products. That wont put much of a dent in the larger growing trend for some time to come. DRE would have sold this well before we need to worry about any other tech. Its a clear trend with everything in place. Costs will drop over time. The testing of these new materials are not a guarantee. Manufacturers will want a lot of real world proof before implementing critical tech components. Power generation is critical.
Oil and gas is another example, we have alternatives, but it will take decades. I would be more inclined to think these forecasts are conservative. Like i said, we wont be here long enough to care.