That's why I think the best solution would be to set your own "PIN Required" threshold. If you don't want your card to EVER be used freely by a third party, for ANY amount, then set the threshold to zero.
The contactless technology eliminates the time-consuming palaver when a slightly defective machine says "Insert card ... oops! ... swipe it ... oops ... nah ... insert it again".
I LIKE being able to spend $350 in a supermarket, wave my wallet at the machine, and type in my PIN. I DON'T like being able to spend $79 at the same supermarket and complete my purchase with no credential verification at all.