The voluntary recall and software update by Waymo, a unit of Alphabet Inc, following the Phoenix crashes is a proactive measure that demonstrates responsibility and commitment to safety. Although the incidents could raise concerns about autonomous vehicle technology, the quick resolution and lack of service interruption mitigate negative impacts. The expansion plans and less criticism compared to competitors suggest a positive outlook for Waymo's operations. However, the incidents highlight the challenges in autonomous vehicle technology, making the short-term impact on Alphabet Inc's stock neutral.