Why can other conventions, even fan-run ones, lock in locations and guests, a whole year in advance, and yet an official, "professional" convention wastes their resources on producing an excessive amount of toy products for several months before working out where the event will be or who will be their guests.

Focussing on material profiteering of toy products instead of producing a "convention experience"... it's their own fault, and then will play the victim as if it was the fault of the other convention for FunPub to miss out.