Accrued seasons is the key phrase, kentish.
Every site I've seen shows Stincomb as a RFA. I can only assume then that he probably wasn't active for at least 6 games in his first year here under Haz to constitute an accrued season.
I.E. He was on the roster, but was he active for at least six games?
Remember, Haz & Co. weren't very high on him that first year - for whatever reason? Looking at it now, I'll never understand why.