I totally disagree! Just because he's disabled doesn't mean he'll have a miserable life. Many bun owners with disabled buns have managed to provide a happy and fulfilling life for their buns. The problems encountered can certainly be a challenge, and it's not for everyone to handle this kind of thing, but it can be done. As long as the owner can cope with the extra care and wants to take on the added responsibility.
And as for the bunny, many rabbits learn to cope with their disability, and this little guy doesn't know any different so doesn't have it being a new thing to him affecting his ability to cope,. So the main issues will be managing little difficulties like how to keep him clean and working out a solution. And I doubt being mobile is going to be an issue. I'll wager he manages to scoot himself around pretty good on those little front legs without too much difficulty.
Being disabled doesn't mean he's suffering now or will suffer in the future. It just means his life will be a little different than most rabbits. And with dedication and care it's totally possible for a disabled bun to have a good quality of life. There are plenty of instances where it has been done, and the bunnies have had a perfectly happy life.
@Taytay1991 I totally get it. I'm not at all saying that taking him in wasn't the right thing. I agree he wouldn't have survived then, and shouldn't be released in the future either. With the disability he'll need to remain a pet. It was just something that needed to be mentioned. Not a judgment one way or the other, just information. And baby wipes are completely fine. I would go for the unscented kind.