I find this comment hilarious considering that the O5 themselves actually failed to sell when first introduced, and didn't take off until Giant-Sized (prior to which no new stories featuring the X-Men were published for FIVE YEARS). People also HATED Wolverine when he was first created and wanted him to die, while Kitty and Jubilee are two of the biggest success stories to come out of the 80s and 90s, and they've STILL both had stretches of irrelevancy (the latter more than the former).