JJ Redick is in the starting lineup now. Him and Jojo have great chemistry. Most of Joel's assists goes to Reddick in PNR and GiveNgo plays. Also, Butler is a great cutter. Cutters are players helping in space creation for Embiid. Snipers (like Roco) were helping in space creation for Simmons. An uptick in assists makes sense, like 5-5,5 (+1,5-2 increase). So there is a chance, with Jimmy and Reddick playing alongside him, to make him more of a facilitator and less of low post scorer, hence the 3s and assists.That being said, 10 assists games will be a very rare sighting. Today he probably wanted to make a statement that he was gonna get his no matter what. In fact, his usage was even higher than usual today.