Judging from https://youtu.be/Do7qLGiVbwY?t=164, the advantage is that they have 3 pizzas in each row rather than just one, and that the pizzas move much faster along the conveyor. It's also not clear from the article but the Seattle system might only support 1 pizza in the system at a time.
The dough is still hand-made, which is an advantage over frozen pizza dough which pretty much sucks, so I'd guess they're primarily interested in selling to delivery pizza chains as a more upscale pizza. Domino's peak is 160 pizzas/hour and they open stores until the average is <100. (https://www.quora.com/How-many-pizzas-does-a-Manhattan-pizze...)
I'm not sure if it's the same pizza as the packaging doesn't quite match but the pizza is similar to this box: https://i.redd.it/hrizyz9gnmdz.jpg
Here is some cheap Italian brand of frozen pizza, probably higher quality: https://www.youtube.com/watch?v=tM4n4upANvQ
I'm no pizza connoisseur, but the pizzas in that video don't look particularly appetizing.
In other words, their pitch isn't to be appetizing. It's to crank out a lot of pizzas for buyers who aren't being picky at peak hours when you can sell just about anything.