as always, game freak's laziness, as
>>36448833said, the RNG takes away the fun, all teams are generated by an RNG that sets up a team specifically to beat yours, with lots of luck based strategies, like brightpowder, OHKO moves, etc. This combined with the ridiculous amount of battles we had to go through in every facility, makes it pratically impossible to get to the gold symbol only by strategy, we need to be lucky AF or use a save state on emulator.
Battle Subway and World Tournament were better just for the fact they had pre estabilished teams, and the RNG just decided which one would appear for you, weren't necessarily strong against you, nor so luck based.
As always, the lazyness took over in later games and battle maison/tree were made, which were honestly just a copy paste of one another
