Blame it on the offense if you want Nomar, but it was the Huskers defense that stunk up the joint. UT held Colorado to 7 points, so their offense obviously isn't that overpowering.
Nebraska losing is great for Texas. There's no way Nebraska stays in the top 4 of the BCS now, so there isn't any way the Sugar could be required to take them. If it comes down to picking between Nebraska and Texas, that's a no-brainer. Texas is playing better right now, has better individual stars, plays more exciting football, travels just as well, etc., etc. The Sugar Bowl absolutely loves the idea of having Texas... now that Nebraska lost big, it's all but a lock.