And what angle is Robertson pushing in those images?
HJH (Harry Johnson-Holmes) judging by the shock of red hair.
Firstly: it is natural for BOTH props in BOTH teams to look like they're on an angle - this is because hookers have wider hips these days in a third-prop shape, and if everyone is a square block from shoulders to hips, sticking a second rower's head between the hips will always kick the arse out.
On that particular shot supplied above: the failure point is the bind of the two Tahs props, with the pressure points circled.
1) HJH (Harry Johnson-Holmes) is binding around in a way that puts his shoulder too far behind Porecki. Now his body is at an angle and he can't develop "big chest" and prevent Tupou from driving in on Porecki's shoulder. In a way he's binding around too tight. It also means, at this angle, if he somehow gets a better hit in than Tupou, all he's going to do is end up angling in, and putting pressure in and down on Porecki's shoulder.
2) This causes a problem for Faulkner's bind, which is fucking nowhere when it should be on Porecki's left hip, meaning he's effectively unbound. So as soon as HJH (Harry Johnson-Holmes)'s vector pushes sideways into the scrum, the Reds hooker is going to make Porecki have a bad day.
I would also add the blindside's bind is a fucking travesty (red arrow). What the fuck even IS that? A neck rub?