Cause it's not. It's a knock off of the e-wing, the legends successor to the x wing that wasn't used much cause it kinda sucks. Though it might be in Ashoka now too.
ultracritical
It's not unfair, nor is it misleading. Coal contains a few parts per million of uranium. Sometimes more depending on source. So when burned this uranium is released into the atmosphere. When used for fission uranium has about 200 million times the energy density then burning the carbon carbon bonds in coal. So kilo for kilo a coal power plant dumps about as much uranium and other nasty trace elements into the atmosphere then a nuclear plant has in it's core.
The situation is even more unfavorable for coal as nuke plants don't typically dump any of their primary radioactive elements to atmosphere. Increasing scale of nuclear doesn't change this either as it would require every nuclear plant on the planet to go full Chernobyl just to match what coal outputs.
Gauge is historically number of passes through gauging machine. With the machine and material in question being different for every single one. We took that and put it to a standard, so it's super messy and makes no sense.