If North America was too wide, we'd just live in a desert. Not what most would want.
Not that the Atlantic's been great either (actually this year it's been atrocious, maybe there should be a study of correlation between average flight times to London and seasonal NYC snow in a winter. I'd bet the longer flight time winters have more NYC snow since that would probably indicate -NAO) but the Pacific is by far the biggest ocean, with most of the world's heat budget. We live in the westerlies, so whatever the Pacific decides to do we're essentially stuck with. The Pacific jet has especially been ridiculous this and last winter and we suffer as a result. Until that quiets down and the Atlantic can also slow down and develop some blocking, we're stuck with a cold/snowy West, upper MIdwest and NNE and lousy everywhere else.