Saddle height is only 82.5cm and non critical at 12cm behind, and up around 86-87cm depending on how far forward but super critical, drop it 3mm and my knees will explode after a few KM.
Those numbers are for conventional seats.
Cleats are full back in road bike guise, cleats far forward in TT guise which is part of the seat height difference.
Knees are under a lot of stress forward as the bum muscles kick in early and load up the joint before it starts to open.
I am not rotating around the BB, the relative pelvis tilt is different, the relative timing of firing of muscles is different and all joint angles are different, especially the leg is much straighter.
Riding forward is almost a different sport to riding conventional road.