Here's what is worst for Sixers fans IMO.
Their roster, as currently constructed, cannot contend. The pieces are dreadfully expensive and do not fit together, they're cap-locked, they're out of premium draft assets, and Harris and Horford will be VERY hard to move. Their only way to raise their ceiling is to win a major trade of either Simmons or Embiid.
And you have Elton Brand making that decision.
That's the biggest blow to me. If I'm a Sixers fan, I'm very aware of the shake-up required to fix the team and I have no confidence that the man in charge can do it.