It's hard to give you credit for the AU prediction since you always overstate their ability and understate Bama's. You just kinda lucked out on that one. I say that only partially t-i-c

. In all seriousness, certainly it's better to have the best defense possible and it's true that this D is not up to Bama's typical standards at this time. Saban told us that before the season began when saying we would have to win some shootouts. But it is still above average and has the talent to significantly improve. The advanced metrics (takes opposition and garbage time into account) that I have seen has Bama ranked around number 18 on defense. That is more than good enough to win a NC with this offense. I don't see a defense that can significantly slow this O down? There are no great Ds and if there were I think Bama could still put up 35-45. It's simply impossible to stop this offense. They can do everything, have a good enough OL and a superior central nervous system (Tua and the offensive coaches: ML, CE, JG, NS). Is Alabama invincible ? Of course not. But who is the most likely real competition? IMO, in order: OSU, UGA and maybe Clemson. IMO, Bama is clearly better than them all - on both O and D (UGA may be close on D, maybe OSU on O, but they don't have Tua. Haskins is good, though overrated a bit, but IMO does not compare - who does? And Bama's WRs and...). It's a new world and things are likely never to revert. Some good, some bad. Enjoy the good and know that CNS is more remarkable than even most of his admirers realize. Bama nor anyone else will likely see his equal again.
Don't let the Ark game overstress you. It was not good but that happens from time to time. Even the possible greatest Bama D of all time gave up 43 to OM, 30 to Ark and 35 to Clemson in 2016 - I know those offenses were much better than 2018 Ark. The secondary and DL are very good, Williams and Thompson are mostly great, the LBs have talent. CNS will see that he gets the most out of them. Not with a whip like some think but through diligence, wisdom and understanding. What more can we ask for?