Clemson Tigers +4.5

What am I missing here? Thus line has been going in one direction since it opened and it's all against Clemson.

Clemson are number one ranked team in the country.
They are unbeaten
They smashed the Sooners last season when they met.
They match up well in offence to the Sooners.
They have a very strong D line.

Yes they have suspended 3 players but only one is important and that would be there second best WR. Other Two are back ups.

I think Clemson getting 4.5 on the spread us a gift and I can't resist this.
They stuffed the Sooners 40-6 last season and the teams are much the same now. Even if you call into question the Sooners motivation for that Bowl game, 40-6 is still a bad beaten.

The Sooners went 7-0 at the end of the regular season but will the break have come at a bad time for them?

All in all, it's a big bet on Clemson +4.5 for me. The market is saying I have got this wrong and it might be a trap. But I'm happy to swin against the tide tonight