To be fare, the reporter wrote this before Summer League began, so he really doesn't know what he'd talking about.
Right now no way I'd put Exum,Gordon,Staskasus over Smart.
McBuckets played really well in SL, handled the defensive changes and double teams, and if Wiggins stays in Cleveland he'll have the benefit of playing with Lebron, they both have a shot in the top 3.
Noel may get hurt because he's more of a defensive player and they seem to look at offesive numbers more.
I think Smart if given enough playing time could be in the top 5. But also very easily drop if he can't improve his shooting a little bit before the season.