Normally I'd just look at it myself, but I'm not at the same location as my wife at this moment and I can't tell from the description/picture.
I bought her some Moment Sierra's this year as a gift and she got herself some Barons to toss on there. Unfortunately, where we live isn't exactly riddled with tech experts so she risked trying a local shop. Below is the result. She is pointing at the midsole mark on her boot and the recommended mark on the ski is easily visible 3-4 cm forward of that. She's never had an A/T binding so I trust her as much as the tech in this case but she seemed certain that the heel was in the locked position (which I strongly question by the picture and his description of how he mounted off the paper jig).
Does the heel slide back that much with this binding in A/T mode? I've never used a Baron so I have no clue. 3-4 cm seems waaaaaaay off to just fuck away a mount unless you've literally never done it before. Does this binding look to be in touring mode? It looks like the red latch is behind what I think is the pivot point, AKA in touring mode and neither of them realize it.