Alex predominantly stivoting and on the backs of his skis… Alex, is Mikaela trying to get her skis close to the pole so she can hit it with her ski boots? Alex, is the front of her ski bent? Alex, is she going sideways and stivoting? 
On the backs of the skis – forced to stivot because the fronts are completely inaccessible. Being forwards is not just pressure on the fronts of the boots – it’s angulating and aligning the resultant force through the centre of mass with the front of the ski. Meanwhile the CoM itself is driving inwards until the turn is released. 
