That's great! As other commenters here have mentioned an online menu accessed by a QR code can have lots of extra features: multiple languages, filters for gluten/nuts/etc.
Meanwhile since I, speaking the local language and not having special dietary needs, want to look at a paper menu while my fone stays in my pocket.
I don't think anyone is actually arguing against having the QR/online menu. That's a great thing. What we're complaining about here is that restaurants have taken away the IRL menu.