From a pro-Bethesda POV here - there are rabid fans on both sides of any coin. It's inevitable. I wouldn't consider this rabid so much as a little bit of a rant - which is fair, and completely justified, considering the site is a haven for this exact specific community. In response to the lore changes themselves - Bethesda follows quite a clear path of not having the lore and gameplay connect with each other. The power cores were just a balance thing, and I wouldn't take them too seriously to heart. As for other mentions like pre-war Jet and Advanced PAs in the East Coast - they're quite clearly "randomised", and not connected to the lore. I mean, you can find Pipe Pistols in places locked off to the rest of the world for the entire time period between the bombs dropping and the events of the game. That's not bad writing because it isn't supposed to be there. It's the limitations of the engine, plus partial laziness for not wanting to program an extra loot list so that it makes sense.