No they couldn't, because the Taptic Engine is not a small layer in the screen for tracking the force, but a big fat vibrator which generates quick and short vibrations to emulate a click feeling. As I said before, there are reasons other than money. Paying more to engineers won't make the laws of physics go away.So those highly paid engineers couldn't figure out a way to make the housing just a few thousandths of an inch bigger to fit that Taptic Engine in huh?