I think there are some opinions on it in this thread:

http://www.wipeoutzone.com/forum/sho...d.php?p=136947

If you do a search for 'zone' and 'glitch' you'll probably find plenty. I think the consensus here is that it's pointless getting the trophy using the glitch, and generally people specifically tried to not share the youtube link so as not to increase awareness of the glitch. I think it was maybe removed with an update. Or maybe only the glitched times were removed from leaderboards. I'm not sure, actually, but someone will know better than me, as I don't really do Zone mode. The answer is on the forum somewhere too.