From what I've seen from the AP wires and such, nope; Each ratings point represents 1,067,000 households.
So, that would say SD's rating is doing better than Raw, period.
"I only wish Eminem could relax and enjoy all he has: his unique talent, and his smooth white hair, which brings to mind a beagle's nutsack. He should lighten up...I mean, my mom was a bitch too, but I don't go writing songs about it." --Triumph, The Insult Comic Dog
I think the guy meant that since RAW is available to more people, that it should be expected to get a higher rating based on that alone (which is true). Smackdown always has a hill to climb because of the difference in ratios of how many people ARE watching to how many people COULD be watching.
Actually, once upon a time, numbers from Broadcast Television meant more than Cable television because more people have access to Broadcast than Cable. So a 4.1 for a CBS/NBC/Whatever show means more people were watching than a 4.1 for ESPN/Comedy Central. But they redid the ratings in the past couple years, so I don't know if they're balanced now.
So today, RAW's 3.7 is actually bigger than a 3.7 from over 2 years ago.
"You gotta hate somebody before this is over. Them, me, it doesn't matter."
"Hate, who do I hate? You tell me."
"Who do you love?"
-Wintermute to Case in William Gibson's Neuromancer
It makes perfect sense. The open match was announced, he was a former WWE champion, and it was a golden opportunity for him to get a title shot as a part-timer. Why wouldn't he take up the offer of a shot at Cena?