It doesnt mean that it getting more and more useful though. The alternatives could be getting worse and worse. Or there just aren't alternatives.

Maybe this is just a disagreement of what it means for something to "become more useful"? As an example, If I need a bank account and every bank goes online only and shutters their physical locations, that is not online banking becoming more useful to me. I was perfectly happy going to the physical location, but i am now spending more time doing banking on the internet.