SAFENetwork is far more than encrypting some private files in the cloud. Yes, you can do that - or even use something like Sia - but the scope of SAFENetwork goes far further.
The good thing is, we don’t need to replace the current internet. Google could easily connect to SAFENetwork itself and crawl through safe sites with little modification. They could just present the links with the safe:// prefix to open them in a SAFENetwork browser.
I suspect many apps will do something similar. They will have a dependency on the user having a SAFENetwork account setup and then the app will use it. The benefits of this become more obvious when the app contains personal data which needs to be accessed over multiple devices. If it is very private data, even more so.
So a user doesn’t need to abandon the clear net and all their apps and routines. Some will want the full fat experience from day 1, but that won’t be the average user. Instead, SAFENetwork is likely to knit itself into the rich tapestry which makes up the current Internet.