So after reading about this here I went to go test it. At first I assumed it was a bug, but now I'm not so sure. I tried a lopsided trade and it showed the not interested dialog box, the way it shows up seems to me like it is a design choice.
Then I traded my 7th round pick for a 7th round pick projected to be one lower than mine, that trade was accepted and the normal trade accepted screen showed up.
It still could be a bug, but I agree that would be awesome if it's a feature now. At the bare minimum we will probably have this until Madden 19.