Just as well Robin Van Persie never played for Everton . He would have been shipped out in no time given his injury record.
Some players get injured more than others, that is he reason for having a large squad. As far as I know Gibson never had a cruciate injury before so it can hardly be called recurring.
But,yes he is a player who will have to be minded carefully as he seems more susceptible to injuries than other players.I think this means that he shouldn't play a large number of games without a break , plays only when 100% ready and not rushed back as happened with a couple of players
last year.