Turner redshirted and was SEC POY? Villanova has guys redshirt that were key pieces on this years championship team. Had Alexander redshirted would you have written him off too or would he be even better because of it?
Your opinion is based largely on the assumption that multiple players who will be upperclassmen dont pan out, my opinion is based on the assumption that they will. Walker didnt do a ton this year, but I saw enough that makes me think he will be a quality SEC player come his junior season.
This wont be proven either way for awhile, but my point all along has been from a pure numbers standpoint at this time that class is no more important than most classes. Now if Fulk and Jalen Johnson transfer out after this season, and Yves Pons goes back to France and Kent quits playing basketball then yes, the 2019 class absolutely is going to be relied on to play major minutes as freshman. But as things stand now the balance and makeup is going to be pretty normal on paper, how those guys develop is the question, maybe youre comfortable saying you know what kind of player Walker/Pons/Johnson/Fulk/Kent will all be in 2 years but Im definitely not...I have watched too many guys develop that I didnt think would, and Im not just talking about Barnes...Armani Moore became a SEC player many didnt think would, Brian Williams was a very solid big man after a couple years.