Normal is incredibly easy. I did my first run on Normal and it was incredibly easy.
I do think Hard isn't as bad as people say. It offers a handful of real challenges and I have a lot of fun coming up with quick clears in Hard that would be boring on Easy and impossible on Maddening. That said, there is an issue with enemy stats- there's way too many things that can be one-rounded in Hard.
I think people overinflate Maddening. It's not unplayable by any means, nor does it necessitate taking hours and hours on every map. It's definitely a big step up and there will be occasions when you need to sit down and strategize, but it's not like you need to do any truly terrible micromanaging to win.
I know we'll never get it but something to the tune of Hard+ or Maddening- would be appreciated. Call that Hard, Hard normal, normal easy? I'd love to play something that had the challenge elements of Maddening without restricting the cast quite as harshly; many units in Maddening are never going to one-round anything even with huge favoritism. Honestly, maybe just have the harder Hard be maddening with normal EXP gain. It's not that fun of a difficulty condition to make unit growth incredibly slow, and some characters who could excel given normal (or at least more normal) EXP growth spend all of maddening hiding from enemy range doing gambits/white magic.