I do not like Adobe in the slightest, but it's not because of their billing practices.
https://www.ftc.gov/news-events/news/press-releases/2024/06/...
Interestingly, just fyi, they do a reasonable-person test when trying these cases. That means they literally pull 100 people off the street and ask each one to go through the funnel and then give them a quiz with questions like "How much am I going to be billed?"
So if people are confused, it's basically on you, regardless of whether you think you were being clear about the terms.
But the contract plan is not aimed at them, but at literate computer users most of them working as freelancers (so with at least some financial knowledge).
The same way a Pilot Operating Handbook cannot be judged by the understanding of random 100 people off the street.
No one needs a pilots license to read a PDF.