The Philly tank didn't commence because they drafted an injured Embiid. Simmons wasn't an injured draft pick, he was injured in Summer League and required surgery and missed entire season.
The Philly tank started when they traded Jrue Holiday, followed up by moving Evan Turner and Thaddeus Young the next year, followed by trading former ROY Carter-Williams the next year.
I do think that if Embiid was healthy to start his career, events more than likely would not have unfolded the way they did for Philly.