My observation about all Pacific heat transfer questions is to consider this.
The Pacific is nearly 50% of the planets surface. All water.
A vertical hemisphere.
That is important for 2 reasons.
1. It is a mostly enclosed by land view.
Any heat balancing required will only operate within its boundaries. Air energy will be distributed outside that region and thus will show up in GT.
2. Heat transfers south are fine but northwards to the Arctic is very restricted.
The Atlantic is the route for heat transfers to the NP.
Therefore a possibly better ‘look’ at climate would be to subdivided the world into new two data sets.
One which takes the Pacific and Antarctica, the other all the rest.