Is no one in charge of marketing or strategy in Google? Surely you can rewrite all the code underlying the product you like, forklift replace it if you want. But why endlessly rebrand existing products. Just keep the brand going. Or converge/consolidate branding even if the underlying software might be different between target markets, like Microsoft did with all its different messaging platforms over time. Now it’s Skype. And Skype for Business. (They’re very different.)