Personally I really think it boils down to "Greed". As Michael Douglas said in the movie "Wall Street" said, "Greed, for lack of a better word, is good." This pertains to most business decisions, profits and "bottom line" as they are the driving force. If people are "non-savvy computer users" then "lets make them pay" can be a philosophy they are taking.
I think the point that is missed with the "CCleaner Decision Makers" is:
1. The "Free" user is not looking to pay, which should be obvious.
2. Now you have made your followers and users feel less important by not considering how this will affect them (No communication, not even now). As the saying goes, "Bad communication is BETTER than no communication"
3. The negative impact this action will make, in the long run, as it pertains to "Company Reputation", "Bottom Line", future customers of your products.
These are my opinions ONLY but time will tell.