Nope. The "point" is wrecked by the excessive potion use, which indicates the results have little to do with the ability of the characters, and everything to do with player dedication: how many potions they were willing to spend on it. If a sorc drank 25 pots, he was obviously DPSing Suulomades, meaning that the fight length has little relation to normal gameplay, and cannot be used as evidence that there's no reason for melee DPS to keep going longer.
That is a serious design flaw of DDO, which I hope gets fixed in module 9: mana potions should have a cooldown. That way an impressive accomplishment would actually be a sign of a powerful character or extraordinary skill, instead of simply a willingness to throw consumables at it.