Yep. Most people do not have an internet connection. They only have a web+ connection from a mobile telco further restricted by not having control of their hardware. So, if we care about the internet we can ignore them and just develop as we always have for actual computers on the internet.

But if you're only profit motivated then this isn't reasonable and you should only target smartphones without internet access and gimp your software to make it possible to run on such limited platforms.

That's why some use FLOSS and others have invented the concept of public research, and that's why they are they are fought, parasitized, hindered, denaturized from the inside.

The trick is to know how much "little" critical mass is needed to succeed...