For me progressive should mean, that features (like adding to home screen, push notifications...) reveals progressively. Visitor should show some engagement, before PWA start to offering those features. Definitely not on first visit. It's very trendy nowadays, but extremely annoying to cancel all those feature request popups. "Do you want to receive push notifications?", "Please install our app for better experience", "Add app to homescreen" ... That's not web I like. And yes, I do realise it's far from original definition.