Taking the plunge for the first time, I would say there are lots of positives in her swing. The two issues I see are that she is going after the ball rather than waiting for the ball to come to her; and that there is nothing of any significance happening in the stride.
View the double clip in two parts: from beginning to toe touch, and toe touch forward. Nothing much happens in the first part except she opens her front leg slightly and tests the waters with her toe. Compare this clip to one of the Benyi clips viewed in the same way.
From toe touch forward there is a pretty darn good swing with one exception: her shoulders/upper body moves forward after the hips stop and rotation is beginning. My guess is that it is more an intent/focus issue - going after the ball vs. waiting - rather than a mechanical issue. The stride is irrelevant from a power perspective - there is no significant loading to unload at footplant and probably is causing her to have a tendency to start the swing too early. But, my opinions come with a shaker of salt, take as many grains as you like.