Once their revenue from Cloud services overtakes their core offering, bye bye Cloudflare free and so on.
But even to entertain this is crazy, not because of decades of history of capitalist and market enterprise in general, but very specific cases of Technology Companies starting with these kind of feel good ideas and declaring "Don't be evil" or things like " access, safety, and shared prosperity" as their core ideals, turn into absolute panopticon and collaborate with unjust killing of women and children in less than a decade.
The market isn't for free.
Their first products were production grade examples of the SDN that required a lot of bandwidth (DDOS/CDN).
The cloud is a logical continuation.
Their business was always the "internet", see their ticker => NET.
Dev free is part of the marketing cost and would stay under the current leadership.
Wait so what do you think their core offering is?