Pretty much all of it, but finally, the relevance. Even if what you say is true, and it makes better blank verse than it does an argument, its not as important now as it used to be. The entire case for AGW does not rest upon these slender shoulders, Its important only in that it was one of the first to set forward serious scientific argument, based on data.
But the consensus that has formed around AGW is not based solely on work done quite some time ago, there is more. Now, those studies might not have been made without the input of Jones and Co. but they were, and they add up to a pretty sturdy case, IMHO.
Put it this way. Suppose tomorrow we find the long suppressed confession of Charles Darwin that he made it all up, he never went to the Galapagoes, and didn’t know a finch from a nuthatch. It was all product of a wicked anti-reiligious crusade on his part, it was all lies, front to back.
There are those amongst us who would cry “Hossanah and hallellujah! Evolution is exposed as a lie! End of discussion, take those books out of the library, victory is ours!”
But no. Darwin’s work has been expanded, verified and underscored. Such work might not have been done if it were not for Darwin’s courage and genius, may the Goddess reward him with Tenure Eternal. So now, if it were exposed as a fraud, it would be only an historical curiousity, the effect on the actual science of evolution would be negligible.
Such is the case here. The eagerness of some to assert that the entire edifice of AGW is blasted to shreds reeks of desperation, the desperation that arises from intellectual poverty and a need to divorce the debate from facts and decide the question on the more agreeable basis of suggestion and innuendo.