As a 76er fan that has been waiting on Joel Embiid to play for two years this is definitely not good news. If I'm the Cowboys I would just put Dez on IR and go with what I have now. Let Dez rest his foot and make sure he's ready to go for next season.
Different situations. Embiid had a mid foot injury, the navicular bone, responsible for the foot's ability to arch. Also, He's close to 300lbs & still growing. He'd shown a penchant for stress fractures previously, having had one in his back while at Kansas.
I know the first things fans want to do is compare, it makes sense, and any surgery is serious.... but the situations are different.
The Cowboys will develop an identity while Dez is gone... and hopefully whatever the prognosis on his return, its a responsible one.
The season isn't over.... It's just beginning....
here's to good health