First off, this is a legal trade. The Suns control their picks in 26, 28, 30 as swaps.
With Paul George hurt again, the Sixers cut the rope, embrace the tank, and pick up a late 1st for Nurkic's extra year as Embiid insurance.
The Suns dump the crybaby loser, and pick up some stuff for a stretch run. The Suns actually wanted Cody Martin from the Hornets, and instead pick up his brother. KJ is filler but could be swapped again this trade deadline or kept on his 8 million deal like Okogie was, and Yabusele is a bigger forward the team needs. The Suns would probably do this trade after thee Beal-Butler resolution, hoping they only needed to dump two 1sts to get it done.