Touché. 
That’s my understanding, yes—or you just repurpose your Video Doorbell v2 Chime Controller (if you already have one) by leaving it in place and swapping out only the doorbell camera unit itself. I imagine this latter was their thinking that a lot of people might do, but that’s just speculation on my part.
I’d really like to see Wyze step up their “accessories” game with the Chime Controller and Macro Lens Adapter (from the Bird Feeder) sold separately. 
My other thought—and, again, this is only speculation—is that someone might be able to connect the Duo Cam Doorbell to AC power without the Chime Controller and still have it ring a home’s internal mechanical chime. Assuming the Duo Cam Doorbell’s button actually acts like a regular “dumb” doorbell button and physically closes a switch to complete a circuit, then that might also work, because I’ve read reports elsewhere on the Forum about users installing Video Doorbell v2 without the Chime Controller and having success with that. Maybe that’s part of Wyze’s thinking in not including it, too? 
Boo, Google! 
(I still like running stuff through Google Home, but dang!)
That actually sounds kinda cool. I’d like to see that demonstrated.
Oof! That’s not what Kyle said in the video!
You also have a third option of “Cameras as Chime” if you also have Wyze Cam models that support this feature.
My expectation would be that all three options could be simultaneously selected, because “Cameras as Chime” works with Video Doorbell v2 even when I have the home’s mechanical chime enabled and functioning, but that’s a good question, too.
Does this part of the unboxing video answer that question? I know that he’s saying “Wyze Lock”, and I’m also aware that Lock and Lock Bolt are two different products, but I don’t have experience with either, so I don’t know if this helps or not.