I don't know why ESPN3 would show the SD feed. The two times that I had to watch SU hoops on ESPN3 that has not been the case.
I had an issue with open captioning of the play-by-play. I reported it to Raycom via their website. I received an email from them during the game in which they indicated that they contacted my local affiliate which confirmed that they had their decoder set for open captioning. Very responsive of Raycom. One other person in the chat room complained of the same issue, I later confirmed with him that he watched the same affiliate that I did.
I see that my local affiliate will be showing all of the ACC Tournament games. I expect to watch the ESPN feed instead.
In a different thread, it was mentioned that an different ESNP3 channel was showing the Syracuse game (due to tech difficulties for the game that was supposed to be on). It was in 16:9 HD. By the time I got there, the issue was fixed...back to the SD mess.