By comparison, Texas we have long open stretches and up to eight lanes each way, so obviously it's less of an issue.
I'd actually assume it's due to proximity to DC, which would tend to massively increase the population of "but the data say"-type technocrats.
https://en.m.wikipedia.org/wiki/List_of_U.S._states_by_road_...
"To foreigners, a Yankee is an American. To Americans, a Yankee is a Northerner. To Northerners, a Yankee is an Easterner. To Easterners, a Yankee is a New Englander. To New Englanders, a Yankee is a Vermonter. And in Vermont, a Yankee is somebody who eats pie for breakfast."
These days, it’s not really about the Confederacy, just culturally.
There is another, semi-derisive, use in which it means any non-southerner. But that is less common and context-dependent.
For surface roads, I'll take our bespoke road layout over a grid any day. Although I do share the sentiment that driving in the Northeast Megalopolis is much more suffocating than the rest of the country. Coming back from a road trip and hitting New York State is like vacation is over, time to get home on the interstate.
I don't object to bespoke layouts out in the country so much as that the "through roads" in the northeast are extremely un-fun to drive on if you have distance to cover. Probably bias from how I grew up, but when I have hundreds of miles to go, I like hopping on a nice, wide FM and opening the throttle.
It's not the roads themselves, it's the sheer number of people.
Also the definition of "through road" is much different. You can't just get on any random numbered route and once you're "out of town" you're good - because there is no "out of town". Traveling longer distances you focus on interstates plus a handful of controlled-access state/US routes. For example, don't get on (a non-interstate-part-of) US route 1 expecting a nice drive. They let the US route get built up with businesses and lights, with the expectation that trough traffic will be using I-95.