Sorry for the late quote, but I remember wanting to respond to the comparison to Anderson.
The #12 in Primo's draft was a bigger missed opportunity than the #20 in Anderson's draft, due to the talent available. Just looking at how many more lottery picks they'll have as a bad team I don't think paints a complete picture.
The 2010 was notorious for being crap after 19. A couple of years after it happened I remember a Bill Simmons podcast talking about and gushing over how lucky the Celtics were to be 19 because Avery Bradley was the last draftable player and it's hard to argue he was wrong. From 20-60, only 2 guys had 10 year careers, Whiteside and Lance Stephenson, and both guys had their particular issues getting there. Only Trevor Booker other than those 2 had an 8 year career.
There's probably starting with the #12 pick about 10 guys in the 21 draft I could foresee having 10+ year careers (or at least 8 years) from a list of about 15 names give or take.
I'm most positive about the chances of (in draft order) Moody, Sengun, Mann, I. Jackson, Grimes, Hyland, Aldama, JRE, Herb Jones, Dosunmu.
There's more guys who will still could end up having better careers than the rest of the 2010 picks from 20-30 whose best guy was probably Trevor Booker who played 8 years. Duarte, Kispert, Jalen Johnson, Keon Johnson, Josh Christopher, and some other guys who might stick around.
With the Anderson pick, there's basically nobody who could be reasonably seen as doing any better as a spur, because there wasn't anyone who could have been expected to do better. Whiteside was too immature. Lance definitely would not have been over himself, and guys like Booker and Vasquez were just 8th-10th men at best. But for 2021 I'm certain there will be players who could be looked back on as players who could have done more for SA than Barry Allen
As a final illustration of how bad that draft was with only 2 players from 20-60 having a 10 or more year career:
I went back to the 2000 draft through the 2013 draft, and the fewest other than 2010 was a year with 5 guys. But there were 2 years of 14 or 15 ! guys. Even forecasting forward 3 years through the 2016 draft, I can't imagine those years having fewer than 5 guys.
00 - 6 players
01 - 11
02 - 8
03 - 15
04 - 8
05 - 14
06 - 7
07 - 8
08 - 9
09 - 10
10 - 2
11 - 5 for now but Bojan Bogdanovic is sitting at 9 years and just signed a 2 year extension
12 - 5
13 - 6 (though I'd barely count Muscala)
14 projection - 8
15 projection - 9
16 protection - at least 5, outside chance of a couple more but they'd likely be fringe
2010 draft picks 20-60 = trash