That's partly fair, but only partly. Gmail and Google maps were both huge hits that they've been so successful at knitting into their core business that we don't really see them as separate anymore. Android has also been a hit at least in terms of supporting their core business in a newly mobile world (which is really the only reason they should release any product).
Almost everything else has been a failure, and the cycle is surprisingly consistent.
Like Apple they seem to just think people will take from Google because they're Google.
Unlike Apple people don't.
I expect their cloud and domain registration businesses to follow the same cycle as both fall well outside Google ' s normal comfort zone and will be quietly put on the back burner when they become too much effort.