it's not brake feel... it's the feel off the accelerator. when you let of the accelerator in a Tesla, it doesn't coast, it's like letting of the trigger of an electric drill.. it quickly grinds to a halt. it's strange to get used to at first but you get the feel by the end of a test drive. it is strange to still be pressing the accelerator as you pull up behind a car at a red light.
this weird feel is one of the problems that halted tesla's collaboration with toyota on electric rav4 drivetrains.