It certainly seems harsh, especially given that Sutil who did worse for Force India last year has found another drive.
I can't see him getting any of the remaining places unfortunately which is a shame as I think he's done enough on the track to be given a chance at a team higher up the pecking order. Sauber seem as if they want a Russian to please their sponsors so it's a no go there. I've also read that one of the reasons for him losing his place at FI is that he hasn't got major sponsorship backing to bring to the team. That would rule out Caterham and Marussia, and in any case IMO he's too good a driver to be faffing around three laps down at the back of the field.