Jason, I confirm that the Video Doorbell Pro is not working as an Alexa trigger for routines. It seems like it is intended to work, since Alexa says this when trying to do a routine trigger for it:
So it tells us we don’t have person detection enabled, even when we have Cam Plus on it with Person Detection enabled. So I am leaning toward this being a bug or Alexa wouldn’t even mention it as an option.
I’ll bookmark this to post it in Fix-it-first-Friday on the 5th if it still exists by then, but if you’d like, I could try to get you some kind of log, I just don’t know what log would help since it’s an Alexa integration issue.