ehehe...
Don't worry Bepi, I got the memo long ago: anything that hurts Juve fans and/or anyone that doesn't fully worship Juventus grandeur weakens the whole of Italian football, and the tragedy is that the peasants that support other teams don't even realize their masochism. Sure.
Anyway, on this particular juicy episode...
...first, a preamble: Serie A tv rights regulations state that clubs can manage the setup (according to Lega Calcio specifications) and operation of the cameras in their own stadium (whose feeds are sent to the various broadcasting rightholders control rooms), or they can let Lega Calcio do that for them.
Most big clubs including Juventus chose to take care of that on their own.
Among the various specified camera positions, there is one, which I believe is optional, far up in the central stand, dubbed "tactical cam", which in most stadiums is the only one that can provide a complete view of the half of the pitch it gets pointed at.
The name comes from the fact that most clubs use its recordings for post-match analysis and players debriefings.
FIGC VAR rules dictates that any camera position that output a live feed for broadcasting must be sent to the VAR control room.
Since the introduction of VAR in Serie A, I remember some protests from FIGC and AIA to Juventus regarding VAR feeds, as it seems that the tactical cam in Juventus Stadium does record the match, but it doesn't have a live feed for broadcasting (with Juventus citing colorimetry technical issues with the installed camera that would make it unsuitable for broadcasting) which means that it isn't available to VAR too.
And indeed, from the twitter screenshots of Sky post-match analysis that uncovered the VAR error:
you can clearly see that the feed VAR used to draw the offside line is very likely from the Hawk Eye goal line detection camera (as the goal line is perfectly vertical and aligned with the goal posts)
while the clip showing Candreva that Sky obtained is from the central tactical cam, indeed showing a wildly different color grading.
Also, today the AIA confirmed that no feed showing Candreva was available to VAR officials.
So, there you have it:
the italian refs association candidly admitting that in some stadiums they are content to measure VAR offside without the assurance of being able to see the whole of the relevant part of the pitch at all times;
and a club being bitten in the ass by their lack of willingness to collaborate to improve VAR in their own stadium.
It is indeed farcical.
And, Bepi, maybe one day you'll realize how much Juventus is in on this farce as well.