Exactly. He was 3 pixels offside. I would love to be the wanker who draws lines in VAR replays.
Be careful what you wish for. Soon it may be down to one pixel.
Just because the system can draw a line across the pitch doesn't make it 100% absolute.
Because of the speed of a player and the precise time when the pass is made, it cannot always be 100% accuracy.
Anyway. The advantage should always be for the attackers and not the defenders.
The objective of football is to score goals. Not to find lots of reasons to disallow them.