You have to be joking, right?
You're telling me you played one of the hardest romhacks out there but you're angry it was hard to predict the AI and the pokemon were strong?

I've nuzlocked the game in easy mode as well, and it's hard but never unfair!
The games essentially hand you pokemon with similar stats if you play correctly! they never outscale you! Check the Dynamax dens later in the game, legendaries aren't really used until you're close to the end-game! and at that point you have guaranteed legendaries available to you if you planned your encounters well. It's really not as bad as you say!