Well, I'd say so yes. It's the same thing that came up when hotlinking was first a major thing[0]. In my opinion, anything but communication with the first party violates expectations. If I visit Imgur, then I expect to deal with Imgur, and not with their myriad of third parties all doing something else that's not directly my business.

People of course don't mind, reality is often like this too.

[0] https://en.wikipedia.org/wiki/Inline_linking#Controversial_u...