I've been modded down already
Well it wasn't one of your more accurate contributions was it? Oooops.
Beside the confusion between Penn State and the University of East Anglia, to say Dr Mann is "really really bad at statistics" is perhaps to overstate the actual criticism leveled at his now infamous 1998 paper. In any case subsequent reconstructions, --and the last word, I presume, goes to Marcott et al. 2013 --more or less confirm the original conclusions of Mann et al.. I'm would assume you (and I genuinely respect your intelligence and erudition phantom) are already aware of that.
it's also worth mentioning that this paper is using computer models
And, invaluable though they may be, we would certainly exercise caution when considering the findings of simulations. In any case, we would naturally be sceptical of any only recently published paper. It's the weight of the extant literature of course, including the examination and perhaps replication by the entire profession of newly published work, that forms the best available science.
I realise that the plural of anecdote is not data, and I realise that warming here in Australia is occurring at a faster rate than globally, but this summer just gone has been truly alarming. Driving my family through 46C heat on the NSW South Coast in Feb was the first time I was literally scared of the temperature (not just uncomfortable but frightened that the vehicle and air-con might give out).