I watched GT Bob's replay last night.
I would like to get confirmation, but it looks like the hoopla at the end of the first half was all according to Hoyle. Brad's 4th down catch as he was falling toward the sideline was ruled a clean catch and then out of bounds by the linesman. The replay showed Brad was clearly down just barely in bounds. It was also a close call as to whether he got to the first down marker. The game clock showed :01 left in the 1st half. As we lined up to kick a field goal, Mark Stoops notified the ref he wanted to challenge the previous call.
When the ref approached Stoops as they met on the field, you can read Stoop's lips asking the ref if Brad was out of bounds. I am sure the ref told Stoops that, yes, that was the call. And that the receiver was out of bounds beyond the first down marker. I am also sure Stoops wanted to challenge both calls, but the NCAA only allows coaches to challenge one call per game. So here were the choices Stoops faced, knowing it was always possible the game clock would be reset as part of the review:
1- Challenge the in bounds call, and maybe prevent Tech from having enough time to snap the ball, if the call was overturned,
2- Challenge the first down call, and get possession of the ball, if the call was overturned.
Neither was a clear choice for him, as the evidence had to be conclusive. The downside in both cases was that Tech would be able to line up and attempt the FG. The upside for the first down challenge was clearly better. The noise on the UK board was all about the out of bounds call, saying UK was robbed. After further review, the refs handled it correctly and I think Stoops made the correct decision (even though his challenge was unsuccessful). BTW, the game clock was reset to :03 after the review.