The main issue with the FR lore base is that they feel the need to put in-universe explanations for the major rule shifts and updates each edition - so each new edition we have at lest one major realms-shaking event that 'explains' why everything works a little bit differently now. I'm not convinced this is a good idea, really - it could be handled more subtly.
It isn't, it feels like changing things to assert authorship if anything.
