This is the misunderstanding I think people have. They truly think it is something new and revolutionary. Making a fruity low perceived bitterness hop forward IPA. The NEIPA is just a cloudy copy of what has been going on in the pacific northwest for much longer. You can do a quick search on here of techniques and hop schedules and go through the history to see examples. When you say wcipas, there are plenty of them that are more traditional in being bitter, etc. They were the first doing more hop forward tasting beers with beers like pliney,sculpin, etc. At that time, the east coast was still producing these bitter bombs, get the most IBU in a beer possible craze. There were examples of these hop forward beers on the east coast such as heady topper.
In the pacific northwest they were creating very hop forward ipas, while reducing the bitterness profile, but utilizing huge amounts of late addition hops. They have been using all the traditional IPA hops such as centennial, cascade, chinook, etc, but they also have been using the others such as AMARILLO, CITRA, etc for a long time. You have to realize hops are grown in the pacific northwest, and that is where all these new breed hops are coming from in the US. The brewers up there have a key advantage from others around.
heres a quote of a boneyard IPA produced in Bend OR.
"Brewed using 6 different NW varieties of hops at over 2.5 pounds per barrel, RPM IPA focuses on extreme hoppiness rather than bitterness. It’s golden to copper in color with a complex malt profile that will not overshadow the hops. Our flagship, RPM IPA, will satisfy any opinionated hop forward IPA consumer"
They focus on IPA's that are NOT bitter forward, but rather hoppy. Depending on what hop is available, is what is getting used. This is what brewers up there have been doing before the NEIPA craze.
I live in PA and have had many juicy NEIPA examples, I just recognize it being a cloudy Bend IPA.