they used the “cooling trenders’” favored dataset and still found no cooling trend.That is simply preposterous on its face and impossible in its accomplishment ...
But I'm glad you said so.
Oh? Please show us your evaluation, your dataset, and tell us what methods you used for analysis (e.g., Mann-Kendall) so we can provide peer review.
Just looking at a graph of the data, it's obvious that unless you specifically and deliberately use the anomalous 1998 as a base, you don't get this glorious "cooling trend."