I agree with
Carorëiel and was actually looking up this quote and noticed that it was just posted.
Glirdan, I believe what the point Saucey was making is that Legolas was walking on the snow with little imprint and that's not technically possibly yet in a fantasy world it is.
Though more on topic I don't see any major problem with this particular stunt. There needs to be some amazing things happening here. It wouldn't be, cinematically speaking, as interesting if Leggy merely shot him from a distance and the battle was over. While this is a bit over the top that is all it is. The other stunts are more exorbitant in their realism and more of a gratuitous insert to make the women swoon (coughbethberrycough)

, especially the shield surfing.