I really like this example. I think the general direction of making dapps more contextual is the way to go. The faucet integration Goran mentioned is related to this; recognise if the user connected to a testnet and automatically display a faucet (could also automatically drip testnet tokens when funds are low).
One further approach I was thinking about is the use of little burner wallets in apps for users completely unfamiliar to web3. They would be able to start interacting with an app (potentially getting a small amount of funds through the Gifts functionality) and would only later be asked to export their account and install a wallet extension. This could be skipped, if an extension is detected.
Btw Goran is also working on some open source UI components with some of Parity’s JS devs, and I think the Raresama example should inform the Connect Wallet component.