Is it though?
I pulled up the latest version and scrolled through the Savedata Block Dump via the Block Keys, and there's certainly categories;
*Bool KOgreOustinCanReceiveRewardEasy
*Bool KOgreOustinCanReceiveRewardHard
*Bool KOgreOustinCanReceiveRewardNormal
*Bool KOgreOustinClearedHard
*Bool KOgreOustinClearedNormal
There also seems to be the option to set the bool type as 1 or 2 for these categories. I assume these are YES/NO states.
So if that's the case, how DO you flag the game to have the NPC hand you a snorlax?
I understand that it's technically possible to successfully edit the state using the block data here, but isn't this why there are settings in pkhex for more complex flag triggers?