Depends on your definition of innovative ultimately.
For me, Face ID is representative of what Apple does best - seamless integration of hardware and software to deliver a polished user experience. While we are seeing videos of how the S10's face recognition feature is getting spoofed by photos (and grainy ones at that), Apple went so far as to miniaturise a Kinect sensor so that it could fit into a smartphone, to having the iPhone's A11 chip being optimised for it, to ensuring the data is stored in the Secure Enclave on your iOS device as a mathematical model that cannot be reverse-engineered.
It's also increasingly clear what role Face ID will play with the rumoured Apple glasses - gesture control via the Kinect sensors. That's the fun thing about Apple events - where we look back and reflect on how Apple's announcements often end up setting the stage for future products and endeavours. Certain announcements and features make much more sense when thinking about what Apple will likely unveil in the following years.
So is Face ID innovative? For me, that's a resounding yes. While companies like Samsung have to resort to the old "our facial recognition is merely a convenient action to open your phone" deflection, Apple is confident enough to have Face ID replace Touch ID as the primary means of securing your device, and spared no expense ensuring that it was no less secure. It's telling that in my country, my local banking app allows users to unlock said app via Face ID on their iPhones, but this benefit does not extend to Facial recognition on any other android device.
It's meaningful innovation that benefits me directly.
