The event started so well, once the seasonal bosses were properly added, with a very decent encounter rate for the boss scenarios. However, since the latest farming update it seems as if the encounter rate for bosses has dropped drastically. This grind the progress of the event to an absolute halt for me, because I need to spend so much more food and time to get those tasks done.
I truly sincerely hope that the lowered encounter rate is a bug, and not an intentional but secretly and silently implemented nerf..