I stopped believing in tier lists (and Serenes Forest's forums) so long ago... I hail from FESS which is now dead.
See, though... FE11 H5 can be easy if you get blessed with stats or know how to lure enemies out. Well, not "easy" but "manageable." I've never played FE9 Maniac, I need to try that out at some point... but FE5 was the one game where even your fully maxed character really started to fail you about halfway into the game because during the second half, it was all about healers and being able to cure statuses. Statuses lasted forever, some characters even got left behind if you didn't escape (it was the prototype to chapters with victory requirements like FE10's first chapter) making Sleep and Berserk especially bad for you, and you got shit all for Gold in the game so your main source of weapons were capturing enemies. And in order to capture your enemies? They had to be dismounted (sleep staves galore) and you halved your stats when you attempted to capture them. Tomes would always weigh their users down, and it didn't really help that everything capped at 20 (HP at 80, but no one reached that).
Then there was fatigue to worry about. Every action that deals with battle adds 1 or 2 to fatigue (I forget how much you get, or everything that adds to fatigue), and if you get enough fatigue in one chapter (basically, the fatigue you gain exceeds your max HP), then you can't participate in the next chapter. And what makes this worse? Half the healers in the game have HP growths below like 30% and bases below 20. Oh and they get captured REALLY easily because they can't fight back... in fact, most enemies capture your healers right off the bat because they're unarmed. It was not a game about stats, in the end, like the hard modes in other games; you couldn't really get away with camping that much. But like, 17 Speed thieves at the beginning of H5 was AWFUL, so I'll give them that.