re: Why is everyone upset about this trade?

the Pelicans have a history of being injury prone. Now we trade for a guy who missed 40% the games in his first two years in the league due to a variety of injuries, another one with blood clot issues which may or may not have serious future ramifications, and another one who missed the end of the 2018-19 season just having knee surgery. The 3 first round picks sound better than they really are because the 2 after this year are going to be very late in the 1st round.

I do like the trad in theory though if all these injury issues turn out to be non issues