It's just the right course of action. Surgery is always a last resort for any illness if there are other less invasive therapies available first.
Most who require surgery, myself and Red Baron included, do so after a sudden unexpected attack, and are very weak and sick. And so one has to recover from the weakness as well as the surgery post operation.
The statement says fletchers surgery was planned ... Which means that he is physically fit and strong going into surgery. And so he will bounce out the other side much more quickly. And so spectacular loss of weight and muscle mass is unexpected.
Of course he will also have a world class rehabilitation system to help him recover which most patients don't get (or need!). And so a few days after surgery, his mini army of Physio's, nutritionists and sports scientists will get to work, making sure every possible step is taken for him to get back to what he was.
I state again, it should be possible for him to quickly regain his physical prowess. Though not a professional sportsman, I did a lot of athletic work a year after my surgery and had ended up being fitter than ever before.
I think that's where SAFs optimism in his statement comes from. It would make sense for united to always keep the door open for him, even of that means that once he is fit, he is allowed a free transfer to a club that plays at a lower level.
Fletcher has done more than enough in his career with us to deserve such paternalistic loyalty.