Yep. The same reason they ignore Gen-4 nuclear, and sucking carbon out of the air. Politicians frankly don't want to solve global warming; they want more money and power. They want to pass laws telling the masses what they can and can't do (see how after the GND was published, AOC was spotted with a friend eating cheeseburgers), and they want an excuse to raise taxes on anybody they can get away with taxing more.

But if you actually have something that will reduce emissions? Well that's a threat to their plan to get more money and power.