If you are a Brighton fan, yes, you would feel hard done by. However, if you look at the incidents individually you could claim the opposite.
The first penalty, in my opinion, was harsh. Where is a player supposed to put his arm when trying to jump to head a ball? There was no way did Okay attempt to handle the ball.The second penalty was also dubious. It could be claimed that Townsend played the ball first. Having said all this, they then proceeded to miss both penalties and that's their own fault and not bad luck.
As for the free kick, Mason should not have let the free kick be taken in the first place. Johnstone was still on the post organising the wall when the whistle was blown. Total incompetence on his part.
I know Brighton fans will feel aggrieved but there are two sides to the story. By the way, we deserve a bit of luck with all the 'iffy, decisions that we have received this season.