The people who believe this are going to keep believing it, there's not really anything to dissuade them. A priori anything might be cancelled could be and is worthless. Most don't have that extreme of a position, Reader and Allo were the last big deprecations.
From what I’ve heard, which could be wrong since it’s just second-hand anecdotes —- internal Google promotions favor people who start and launch new projects rather than maintain old ones.
If that’s true, Google’s products aren’t subject to cancelation in the way that any given web service is.
I can’t think of a single google cloud product that’s gone GA and then been shut down. Google has different attitudes towards consumer and enterprise products.
That's just poor branding. Google Cloud Print was not part of Google Cloud Platform.
(I feel like Google just doesn't understand branding. I remember when they launched the Pixel C after the Chromebook Pixel, and it ran Android instead of ChromeOS. What was once a Chrome brand became an Android brand. I guess because Chrome was doing pretty well at the time, and Android just reminded people of slow phones that ran out of battery instantly. Sigh!)
Google Plus? Hangouts?
Maps got a 7000% price increase... No user support for blocked accounts?
My point is though that while you say "most don't have that extreme a position", I'm not sure what % it is. And does that perception, that it exists at all, hinder them from future rollout?
