If you already pay for Adobe CC as many designers do, there's an opportunity cost to learning an entirely new system and workflow. Those are hours that can't be billed. The opportunity cost of switching would make sense if Adobe was charging 5x more for these features, but they're not.

At the end of the day, not everyone will need to "make" generative art. There will be plenty of it on Adobe Stock that clients will be fine with, especially once they see the hourly billing rates for custom generative art that requires multiple prompts to get right.