I do kinda agree, I could see myself getting some use out of a fold style phone, but I am definitely not the target audience.
But I could see a lot of smaller benefits for a flip style phone. Having a smaller square even if it is chonk, would be easier to store while cycling or running, or even just putting it in my backpack pockets. Would I be willing to fork over that much money... Probably not, I would most likely get something like a fair phone