Over at The Many Relms of Relmstein, Relmstein discusses how Naxxramas was originally created to be the hardest of the hardcore 40 man raids and how what was then not as much an issue (namely, extreme latency causing issues) for the very few at the top is now somewhat more obvious. Since Blizzard designs raids to take buffs like Replenishment into account, should they go that one step further and assume there's going to be some latency? Some players report unusual latency in the raids that seems to have nothing to do with their internect connection (an issue that was supposed to be fixed in patch 3.0.8) so should lag just be considered a fact of life? And would we lose interesting mechanics (Relmstein himself mentions the Thaddius fight as one that would be hard to do with latency in mind) like the combined three drakes and their abilities?
Obviously I don't know, but I think a little thought placed into making lag less lethal for an entire raid would be a good thing, at least as long as it's out of the players hands like it seems to be now.