Battles these days seem to be about memorizing patterns. Not about improvisation. For example:

You go into battle blind (no research), you see what happens, it's hard you die. You repeat a dozen times. Now you've memorized every move the boss does, you know the exact order they do it in (its always the same), and you can now do the battle in your sleep so long as you can remember the pattern.

The need for skill and ability is gone at this point. An example with Garuda:

You know exactly where she jumps the first time and can even go hide behind a rock before she jumps.
You know exactly where she will jump the second time, and can even go hide behind a rock before she jumps.
You know exactly when she'll use reckoning, and can even start gathering together and casting sacred soil before she even reappears.
You know she has two sisters, and will call two sisters, and when she will call them, and where they will appear.
You know exactly when she will start creating the eye of the storm and can even go there before she's made it.
You know exactly when she'll jump out of the storm and call her sisters and can start healing before she's done it.

The entire exercise is no longer about the battle, not about the strategy, not about reacting to an unpredictable enemy. It is quite the opposite. You know everything she will do before you even start the battle. I dare say, it is so predictable you could automate/script your part in this play. The only 'challenge' left is getting into a party with others who have learned their parts, and all being able to click their buttons correctly. And I do not believe this is where the challenge should be.

Until the boss fights invoke strategy that is not predictable, until they employ moves and skills we would never expect, until such time that victory can only be guaranteed by improvising and skill, and not by watching you-tube or trying 100 times over, will there be any true challenge here.

At least not for this little Elf.