I have the same keyboard and same problem. I am desperately hoping that Apple is (a) using some taptic magic to make it easy to feel the edges between keys (this is possible from the original haptic/taptic research) and (b) requires a CLICK instead of a TOUCH to reduce accidental touches. A physical escape key wouldn't have gone astray either, as a power terminal user particularly with vim -- different escape keys (no matter how good or bad, simply being different in tactility) also drive me a bit batty.
Maybe you move your finger on the bar and see where you are real-time and release to execute? That'd be great - especially if combined with tactile feedback.