I wouldn't say equally possible or anywhere near that. We have decades of evidence of what I said, even among "legendary" competitors like Michael Jordan. You have to take your lumps.
The Sixers took some of their lumps. If the management goes in the right direction and everyone stays healthy, they'll go a bit deeper next year, lose again, and then be one move away from being a real contender. They're about a year ahead of schedule, and that's with Fultz's bizarre injury situation.
None of their performance is an indictment on Ben Simmons. He led that team as a rookie this year and the respected vets fell in line. That doesn't happen if you're Austin Rivers.