Of course it changes the stance because there is no reason to give advantages if you have the technology to give you the correct answer. The limitations of the current technology is a different argument. But if it is able to provide the refs with the correct answer than there is no advantage to the attacking side because the only reason that exists is in cases where refs don't know the answer.
Offside is offside. You can't just allow goals because they are only an incy wincy bit offside. They are offside. Lets just get rid of goalline technology because it is only milimetres so who the feck cares.
I disagree - you are talking about milimetres precision. This kind of precision can be achieved by goal line technology, but unfortunately not by VAR.
As a referee myself, I'm 100% pro VAR. I don't care that much about one of the biggest complains - the delays, however there is one big problem - the video technology has technical limitations. TV in the UK is broadcast at 50 frames per second, but each frame consists of only half an image, so there are 25 images per second.
So at 25 images per second there is 0.04 seconds between each image, so there is a gap of 0.04 seconds between each image and we have no information on what is happening during that time. This seems like a ridiculously small amount of time, but in football it's actually quite substantial. Players often sprint with 30+ km/h, which means that in 0.04 seconds they would travel 33.3 cm, even at moderate running speed of 20 km/h (marathon running speed) players would travel 22.2 cm. As you see milimetres precision is not possible when your resolution is thousand times lower. It's even worse for the ball - it can be kicked with speeds in excess of 100 km/h, so in 0.04 cm the ball would travel 110 cm.
I'm not sure what is the recording fps that is used for VAR, maybe it's higher - if someone knows, please let me know. I did my calculations for the standard 50 fps, but even if VAR uses higher fps, I don't think we have the technology for something that would give us milimetres precision.