They need to stop making dystopian sci-fi real. Why doesn’t any of them go for a startrek kind of future?

It's because they don't have ideas of their own.

So they look at old scifi stories, and see what things they might be able to make now.

Knowing that even if they can't really do it, there's built in hype to get investors onboard. And deep down, getting investor money is what they're concerned about.

Doesn't matter if the product never launches, just that talking about it drives up stock prices.