It could be! Although, from a physics/physics-mechanics stand point - there might be more force acting on the petals - forcing them downward by gravity. While if we were somehow able to re-orient the flower (whole plant or pot etc - without the media falling out that is) so that the faces of the petals became more vertical, then the reduced downward force on petals might allow the flower to take on a different look. But - on the other hand - the ones in these pics here are fantastic. Beautiful and natural - absolutely not 'defective'.This could be the reason why flowers face a bit downwords.