The way I see it if he couldn't get healthy during this past off-season why would another one matter?
The human body does heel itself if you take the proper measures. Why would you expect otherwise? It seems that there wasn't enough time after his surgery to be 100% when the season started, and things have compounded since then. That's not to say that future injuries won't be an issue down the road. Hence, why they need to give him more days off.