I simply made a point that a lot of people complained about Kelvin WHILE he was here. A lot.
Personally, as I said in my post, I was floored and disappointed when he left but also understood those who complained. My biggest beef was the recruiting as I felt if he got better players, he could take us higher places. But many hated his arrogance, his style of play, and lack of HS Top 100 recruiting success and losing guys like Eton Thomas, Sheldon Williams, and Giddens, Case, and Jackson to KU.
I brought up the NCAA record as it was a huge complaint of fans. Too many first-weekend exits, including too many as the higher seed. Losing to teams like Manhattan, Indiana St, and Milwaukee Wisconsin. A lot of unhappy fans during those years not winning bigger, and the old message boards reflected it. The peek 3-5 years of his success didn't equate to what he achieved in his last 3 years, and how he finished his time here. After those 3-5 years ended in 2003, we lost in the Big XII tourney as higher seeds two of three years, lost in the NIT, and lost in the NCAA to lower seeds twice. Again, a lot of people wanted him gone after the 1st round loss to UWM in 2006.
But NOW there are a ton of "fans" that act like Kelvin was just a slight notch below Billy in success AND popularity. He wasn't. And they conflate his success in those 3 to maybe 5 years as the norm of his achievements. It wasn't.
As far as how that compares to the current era or years since his departure, I've not argued the 18 years since he was gone was better than the 12 years he was here. Never made that statement. Just simply reminding people of the mood of fans when he was here doesn't always match the perception of what people recite now.
IMO, as a message board lurker, Tip In Club member, and season ticket holder of 20+ years, Kelvin is more popular in Norman in 2024 than he ever was when he lived here.