In case it passed by you, the spawn logic has been broken on many things, from festival NPCs like Richie and cows to Chrysalia mobs. Heck, last week in Chrysalia, the rage camp has stopped shifting because it needs to be attacked to move and it hasn't been. Any logic that NPCs constantly dying or despawning and new ones coming it is flaky.
And Demo battle has been having issues with spawn ever since the week it came out. So, little late to blame those nefarious botters.
Meh... yes, spawn needs to be fixed. No, it does not help to chase the wrong problem.
-- Rustyx --- 92R / 92S / 92M on Reni (Guild KnightShift). Yes, running the new FOTM R/M, cause I am not elf enough to be WD/S.
Oh, and people who have more than 3 classes are clinically insane.