The average rating can be very misleading. E.g., Bama has a ~94.6-8 rating, then adds the best kicker in the past 10 years according to Chris Sailer and the avg rating drops to 93.81. Numbers have value and UGA is having a great class thus far and will likely continue, but numbers can make no sense at times. If UGA adds one 3 star, even though that player may add real value to their class, their avg rating, having only 10 commits, will take an even bigger tumble. Even a couple of low 4 stars will drag it down significantly. If Bama adds John Metchie, a low 4, their rating will drop noticeably - about .3. I pretty much ignore avg rating - just look at number of 5, high-low 4 & 3 stars. Then add in that it is just the opinion of semi-pros.
As I said, this is not to take away from UGA having a great class also. But all Bama has to do is stay within genuine shouting distance of UGA in recruiting and they will continue to have their share of success, though maybe not a whitewash. Bama has the better coaching and football attitude and environment, UGA has the advantage of newness and a great OL coach. And though not perfect, Saban is the best talent evaluator in football.