That said - Joubert made a few real strange ones!! However even though I do believe the Scots were robbed, I have every sympathy for the ref.- the laws are so complicated that it is nigh impossible to see and interpret everything in real time.
I always say to teams( I umpire hockey) that they will probably make more mistakes as players than I will as ref so accept the (very) few I do make!!!!
I'm still gutted for the Scots
Cheers!