I like this event to be honest except for the amount of parts you get in the dungeon, I think there should be more.
I built a Heracross to take down every Bot with 1 hit so I only have to spend healing items when I fight the NPCs and there isn't many of them.
But ofc you are not forced to use a Heracross, so you can build your team to cover every Bot: Bug, Flying, Ground, Water and a strong STAB Fighting move is all you need for them.
There's still some flaws in the event though, in the part with the 2 similar rooms with 1 Rock and 2 Buttons, if you open the right barrage, your partner pass it, you close the barrage and jump down the ledge you will get stuck with nothing else to do because your partner won't be able to get back and you wont be able to make it to the rooms again.