potentially you could have a node than can detect that an address accessed a data element if you are connected and close (think if you were the tor node) but apart from that no, the user is not connected to the data retrieval mechanism. so it would boil down to knowing an IP:port got a data element and if you can get close (remember you need a lot of nodes) then you could tell an address linked to an IP asked for a data element. Then ISP’s leak info that can be used (for now)
I see this as short term as we can introduce further work on scatter gather to rid this last part, but this attack should not be underestimated. it is a country level attack or even more difficult (beyond 5 eyes) and gets harder as the network grows (like in nature as an ant colony grows, it gets stronger).