Oh absolutely, but just looking at data from BWL the first two weeks, there where many guilds who actually struggeled with full clears, which is kinda amusing seeing as BWL is easy compared to AQ and Naxx.
Only time will tell of course, Naxx won't live for long for even the casuals, and eventually fall to the ordinary pugs (and more coordinated pugs earlier).
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Orange parses is for noobs though, pink is where its at.