This is an inaccurate oversimplification.

Youtube Live was a distinct product from Hangouts on Air [1].

Nexus -> Pixel can indeed be described as a re-brand or a rename.

Picasa and Google Photos have been separate for years [2][3].

Chrome Apps were exposed certain platform features that there's still no web-based alternative for [4].

[1] http://www.theverge.com/2016/8/15/12490666/google-hangouts-o... [2] https://en.wikipedia.org/wiki/Picasa [3] http://googlephotos.blogspot.com/2016/02/moving-on-from-pica... [4] https://news.ycombinator.com/item?id=12322791