Why pretend you don't see the false equivalency you're drawing here? A limited amount of free storage/transfer or a consumer cloud product is not equivalent to what Cloudflare are offering here, or what S3 is. If you need S3, Office 365 or Google Drive are simply not alternatives. Google and Microsoft offer viable alternatives, and hey, they cost money: [0], [1]. If there is a completely free alternative to S3, I would love for you to send a link, because Googling doesn't show any reasonable alternative.
0: https://cloud.google.com/storage#section-10
1: https://azure.microsoft.com/en-gb/pricing/details/storage/bl...