Maybe....but more often than not, if a storm doesn't develop over 80*F SST, it's either because TCHP is insufficient (depth), or the mid levels are unfavorable due to shear/dry air...but this goes back to my theory about CC causing more shear over the Atlantic basin downstream from the Pacific..perhaps that is nature's way of balancing out a reduced need for heat redistribution in a warming planet where the rate of warming near the poles is most rapid, which supports your idea.
Interesting.