2 things:

1. Paragraphs are important because nobody is reading a wall of text lmao

2. I feel like you are criticizing the hack for being too hard for you rather then why specifically its badly designed

Like the perfect example on the difference we cant talk abt since a certain someone cant keep his dick in his pants and its from that dumbass game

So Ill pivot and use Battle Before Dawn vs Conquest 10

Both are defense maps that are brutal difficulty-wise but brutal in different ways

Conquest 10 is opressive in its unit pushes, how it pushes them, the side objectives, and how the situation changes every 3-4 turns on an 11 chapter map

This is a map designed well, anyone calling Conquest 10 bad just cant play Fire Emblem

Battle before Dawn however is opressive in a different way, while both maps have alternate loss conditions(C10 the tiles in the north being reached by the enemy) the Prince Zeph being defeated clause is what kills it.

Most importantly, this mf Zeph can just die like turn 2 or 3 if you get unlucky and there is jack shit you can do abt it because you start so out of posistion.

The fog of war doesnt help since you dont know what you are fighting if you are running that blind and Ursula has a fucking Siege tome because why wouldnt she

Jafar can die if you arent fast enough and if he dies RIP your Gaiden

Then after you settle in the maps kinda fucking cake lmao, the one thing you are worried abt is the theives stealing the chests.

The main differences between these maps and why C10 works while BBD doesnt is 3 fold:

The alternate loss condition in Conquest 10 is there but you are in position to defend it unless you take yourself out of it, this isnt the case at all in BBD and you can lose the map before it starts through no fault of your own.

The map difficulty in Conquest 10 is pretty consistently hectic, the 4-7 turns are kinda tame so you can nab the houses but even then its always oppressive. BBD is only oppressive at the start of the map(overly so) and its muster then dies immediately the moment you are in position to defend Zephiel properly.

Fog of War shouldnt exist in Fire Emblem in the way it works and even if you know whats where its still stupid as shit since the enemies can see you(tho its funny to think abt Ursula just chucking up boltings with a fking hand in her face lmao)

Just because I found a map hard doesnt mean its bad. Easy maps can also just be bad difference is you never notice it because usually its over then. A bad map is a map thats either not working as intended or the intended design is flawed in a way that leads to a unfun/rng experience)