I do not believe you when you say Hyrule Warriors is not a hard game. The evidence is there in game to disprove you. Many of the stages in adventure mode are very hard. And the game forces you near perfect stages for the weapons and other loot. And hero mode is not a breeze. It's hard as nails. Everything has way too much health there and you take lots of damage.The Zelda fanbase, I swear...
We need challenging games! It isn't fun unless the game challenges us!
*Hyrule Warriors is released*
The game is too hard! It's not fun anymore! DX
And honestly, this game isn't even that hard. Yes, I am getting stuck. Zant's old school weapon mission (A4) in the TP is giving me a run for my money. But as far as challenging games go (yes, including modern games), this isn't all that bad. I'd say it's average difficulty at most. That said, I probably would be having more fun if they gave us a "less damage" potion or something. An occasional challenge is nice, but overall I (and apparently a lot of people) don't get that much entertainment from a lot of challenges.
This game's real issue, IMO, is leveling though. I feel it'd be much better if they took out levels (weapons are fine) in the next installment. The real "challenge" in this game is knowing you're under leveled but not wanting to go through a grindfest, and going through a mission your character isn't prepared for to avoid grinding.
On the opposite side of the spectrum, your favorite characters end up getting too high leveled. Now even Hero Mode is a breeze, so if you WANT to be challenged, you can't use that character anymore. It'd be much better if we simply didn't have levels, grinding was removed, and every mission was beaten solely on your skill and nothing else.
Ocarina is for many people their favourite Zelda game ever. In part that's because it's not that hard. It's accessible. People can sink their teeth into it and they can slowly get better as the game gets harder and finish it. Hyrule Warriors on the other hand requires massive amounts of grinding to make certain stages manageable. Some stages though, like the do not get hit stages and the kill things at the same time stages and the 1000KO's in 10 minutes stages are just not fun. They are the wrong type of hard. If we did not need an A rank on those stages for the loot sure ok, but because we are forced to ace those stages, it just becomes tedious.
You can liken this game to Zelda 2. Levelling up your character removes some of the challenge but not all of it. Zelda 2 is still a hard game but with a little skill you can finish Zelda 2. Even grinding levels early on in Zelda 2 is not too painful to do if you need to do it. Hyrule Warriors feels the same except grinding levels does not help that much for some levels. Sure you get more damage but those stages without a recommended element supposedly are not affected by armour badges. That and the do not get hit stages just make the game very hard with no leeway for mistakes. A few hits and no more A Rank for you. Very tough indeed.
The grind in this game is fine. The issue here is that all your hearts and healing potions mean nothing in adventure mode to get A Rank. And there is no way to reduce your damage taken in the stages with no recommended elements. Every stage needs a recommended element I think. Even if it's a useless one, like light for a ganondorf only stage. Then we can use an armour badge for it.
Well considering the fact that getting A-Rank is what Adventure mode is all about, that makes the heart pieces relatively worthless. They are useful for Hero mode in Free mode and for farming EXP and map loot that does not need A Rank. Bur for any of the good loot in this game. A Rank is required. If you ignore these, you are ignoring the weapons that make the game easier to play by killing things faster.I don't understand your complaint about heart pieces after what you said about inflating attack power. Heart Pieces are made even more useful when enemies do more damage. They're only useless when you're going for A-rank.
Also much of the Twilight Princess map hits you very hard. Some of those stages are very hard.