The penalty in that german game isn't that bad a decision, the player completely conned him, he waited till the defender cut across the back of him before going down so i don't really think the ref can be blamed for that. When you watch it the first time, not slo-mo, it looks like a foul.
HOWEVER
Yesterdays decision was shocking, i agree with Martin, there should be some sort of punishment for giving a decision like that.
And on another note, linesmen are generally responsibility-shy wanks and usually shite it from giving decisions even when they've got a great view. I think they think their jobs are just to indicate for the crowd what the refs decision is
The linesman in that penalty never even done anything and he was twice as close as thomson haha