Yeah, people have short memories if they don't remember Chris Paul's underwhelming return from injury. It takes time.
A player in top condition needs weeks to get into basketball condition. This is completely different from a guy who has had limited use of his legs for months.
Look at Rose also. Rose still had a lot of explosiveness after staying out over a year, but at the point where Rondo is now, Rose refused to play because he didn't feel ready.
Don't be quick to judgment.