The whole stack is undoubtedly doing a heap of clever things, they are very impressive devices. I'm not sure what "fully aware of touch precision" means exactly

The whole stack is undoubtedly doing a heap of clever things, they are very impressive devices. I'm not sure what "fully aware of touch precision" means exactly. I mentioned precision a few times to hint at the common misunderstandings about precision and the irony of interpreting subpixel touch coordinates as literal point/s that the user touched, deliberately and specifically, when they were generated from someone smooshing a number of body parts against a small touch screen display. Simply making things bigger isn't a comprehensive solution (to what is a difficult user input problem, as you know), but it is something that can help, and crucially can be implemented in web browsers. I want web browsers to be less cowed by web designers/developers, to empower the users. I'm not trying to change your mind/experience. I know that a lot of people must be similarly unaffected by such issues. Not everyone is in that privileged group, however.