Yes they did and no there's not. People were looking for a reason to explain it away. It isn't conjecture that Banks and Hooker had a clash or that Banks was left home because of it. Generally those kinds of things are pretty much of null effect. They happen a lot more frequently than we are told about. Occasionally the team will actually pull together because of it.
But there isn't more evidence that the tiff between Hooker and Banks had any impact on the game beyond the absence of Banks on D.
When presented with what is known and provable, the other Big 10 schools went ballistic. It happened and it wasn't just a one man operation. I believe it is Thamel who reports that as many as 65 associates of that analysts spread out to steal signals. They had a vested and BIG interest in seeing both UT and Clemson get a 2nd loss. Both were likely to be taken in the CPF ahead of Michigan and deservedly so. Then suddenly... completely out of the blue... a team that was just trampled by a bad UF team... struggled with an awful Vandy team and were beaten by a Mizzou team that UT had boat raced... became perfect... they were the best team in CFB. They beat two of the best 3 teams on their schedule and just couldn't do any wrong. Coaches who had looked like bumbling fools for 10 games were suddenly the best in football... only to revert to their true selves this year.
I'm sorry if that sounds like a reasonable proposition to you. It isn't.