I like the move for both teams because of the Simmons situation.
For Brooklyn, last I checked Ben Simmons is still 6’11, an elite playmaker, great vision and passing, and is an elite defender 1-4. He’d be relegated to the #3-4 on the Nets (assuming KD, Kyrie, and Patty remain).
For Philly, Harden is a great running mate for Embiid doing most of what Ben did with outside shooting.
I watched the final minutes of today’s Nets-Cavs game. In the final minute, Harden had Markannen 1 on 1 with no one behind him on the perimeter; not only did James not get around him, he had to pick up his dribble, and threw the errant pass/turnover to Kyrie to go down 5. He looks great at times, but is his lack of conditioning causing him to lose a step during crunch time?
Embiid and Harden is a great pairing with Doc for the regular season, but I know Doc teams and Harden teams and they show signs of the yips during the playoffs.