She has pillion handles, she needs to use them!
IMO are they not ideal... (bears the question if one could actually withhold his weight under a
full, heavy braking manoeuvre...)
IMO-II is there no issue with "pillion weight moving forward", since she maintains contact to the rider's back... hands rest comfortably on her knees...
My SO pushes her heels down behind the pegs and presses her knees together during heavy braking, her upper torso is already close/in contact with my back, so there is no sudden "impact"...
That's how its learned and practised during MSL over here... works perfectly, even when hauling the bike down from +60 by hammering on them brakes, front tire chirping at threshold...
The pillions are also advised to be attentive, look ahead, eyes horizontal just like the rider, so their not blind-sided by a sudden braking manoeuvre over something ahead...
Having the pillion at close contact also improves handling and precision in turns...
And I actually can't deal with any other seating position of a pillion, if one thinks she can "lounge" somewhere back there, I instantly bring her forward by blipping the brakes... :twisted:
I suggest subscribing to a safety training with the pillion, see what the instructor suggests and practice that there...