Exactly. Only by selecting 0 this will put pressure to get rid of it
I saw this in two restaurants already and I am pissed
This is no pressure. You can exert pressure by saying that you are cancelling the transaction because of the tipping screen and you'll eat somewhere else.
It won't though. A screen on the card terminal is free - if just 1% of people misclick the button and pay a tip, the company still wins.