QR codes aren't the sort of thing anybody has been trained to click though, there's no other cue to even begin to suggest that it might initiate a payment request. To me that would just be a QR code of a Bitcoin address that is in plaintext to the right of it. Showing me this page I would have said there's no payment request support at all.
So destination address could be clickable in this. I think they should keep it underlined, though, personally. I guess even Google is throwing that out lately.
