I actually did adjust my mount to aim directly at my face (I could see myself in it like a mirror). But it seems there's also a distance limitation for the FaceID. I had to lean in 8-9 inches each time to get it to unlock which I don't prefer to do while in the car.
Face ID needs work, but its not horrible or even much different than TouchID. FaceID doesnt work for me mostly due to distance from my face or something blocking my face. With that said, Touch ID also consistently failed for me in certain scenarios (For example, touch ID ALWAYS failed during and after workouts, in cold weather, etc.).
Nothing is perfect, but FaceID as it improves I feel it will be more convenient than TouchID. Thankfully folks who dont want to step into the future can stick with TouchID for now while FaceID matures.