Ok, so we have the Spotify Agile Model now (tribes, squads, chapters, etc). I have seen it implemented in a few large companies, and they seem to be doing ok.

It's just... doesn't anyone worry about the product that came out of this great way of working?

Spotify is great as a service, but it has to have one of the worst usability/success ratios of any modern mobile / web app. You can almost feel the various squads doing their own thing, not thinking about the whole experience.

Doesn't the product count when considering using someone's way of working? Is the Spotify Agile Model the project management equivalent of Twitter's Bootstrap?