The Celts won Games 1-3 because they are the better team. Yes, two of those games were close. One was a blowout. The Celts have had a chance to win in all four games so far.
Game four was predictably called in favor of the Sixers, and it was on the road. The Celts have two home games to close this out, and one game in Philly. They've already won a game in Philly.
I'm not panicking. I'll be stressed if the Celts lose tomorrow, but I still like their chances winning one out of two with a game seven at home.
It's been noted by plenty of media people but Embiid's conditioning is not great. He is only going to get worse as this series goes on. That should help the Celts close it out.