-There's no explanation to how it works. No tutorial.

-It doesn't seem to matter what way I rotate my mouse, fast or slow. It just fails. the fish goes wherever it wants regardless of any technique used.

-There's no afk feature which = dead content for life skill fishing.

-For some reason you need a different rod? Bad design.

-Rewards for time wasted on this buggy, boring mini game are bad.

There is but not in-game just in patch notes.

I agree it is Needlessly "difficult", The caveat being u can seemingly go back to the NPC and get more rods.
also a bummer but this sease to me that it was intended to be manually done not afked

I don't even like that this is called an event u get 2 weeks of weekly only quests, that's something like 6 fish each if u wanted to alpaca for the luls which is getting deleted

I tend to agree on the last point, I'm sure someone will be into this content but it wasn't for me either

-There's no afk feature which = dead content for life skill fishing.

Disagree, if anything the game needs more non-afk lifeskills. The rest of your points I can agree with though.

also it doesnt use fishing mastery or increase fishing xp.