Platini is against goal line technology, thus the extra AR's. Blatter probably got bought off by the company who sells the stuff. It is very expensive to employ. Italy first used the extra AR's in Coppa Italia. I can't remember if it has been one or two seasons in Serie A.
I've done it again and ventured into Pluto's (Hades') underworld at the ref thread. Send prayers my way @Calcio Pauly!
Get a list from them of what they thought were good and ... if you can ... not so good calls in this cup