One thing to Apple PR credit is faceid. For me it's hot needle replacement for failed attempt to integrate touchid into display, but for most people it is innovation.
You appear to be assuming that integrating Touch ID into the display was Apple's first choice. If face ID works as promised I can’t see why anyone would prefer Touch ID over Face ID. Even if your assumption is correct Face ID is still innovative.
They probably figure that people should be using CarPlay, though.