Who is going to pay $20/mo other than professionals? You'd assume professionals have professional hardware. A mid-range GPU or a video editing laptop is not exactly breaking the bank.
>no tool required to see that it is generated
But again, that also applies to commercial generative images. They're easily discernible, if you just look. Midjourney is stable diffusion with a bunch of LoRA stacked on top. And it can't shed the "midjourney look" because of that. That's not in dispute by anyone.