The photo only tells half the story though, it looks bad but by his movement I really don't think it was intentional. Had that been Calde or Bennett getting caught on the arm in the same circumstances would you still say it would be a justified penalty?
Not for me. Chambers could do little about it and the referee was very well placed. It's the kind of decision you see happen to other sides and you cry out for officials to show a bit of common sense and not award soft penalties, but of course when the Albion need a goal it's only natural to...