I just beat Zelda: BotW, and the ending is absolute trash.

[GameOverture]

Your complains about the fighting system are pretty weak. If you’re having trouble getting swarmed, then don’t. The camera is fully in control of the player, so just adjust it how you see fit. You want to rely on dodging instead of shields? Then learn how to dodge! It’s risk-reward, one of the most fundamental design ideas.
Also complaining about 900 korok seeds is a stretch when you only really need a fraction of that for the useful rewards. The reason there are so many is to ensure players will stumble upon a reasonable number of them in their quest.
In relation to the shrines, I’d say even the crappy ones like the Tests of Strength are still rewarding because they give not only a fast-travel point, but also this game’s version of a heart piece a.k.a. the best reward in most zelda games