Why do you post on a discussion board if your only opinion is that the coaching staff (not that you have any proof they made this decision, although I'm sure they were consulted) and the club are always right?
To answer your question though, what I see in Jones is a man who cannot be relied upon; a man who has been here for eight years and only just scratched 200 games in all competitions, and a man who, when he has played, has veered from mediocre to abysmal. I see a man whose constant injury record has masked the fact that when he has played he's rarely, if ever, consistently looked like he should be a starting player for a title winning side.
What I see is another example of a club rewarding mediocrity, and what I see is the club throwing up barriers to getting youth players minutes by continuing to keep the squad bloated and full of deadwood. Even as a 'squad option' it's a poor bit of business.