When using the dispenserFallingBlocks mechanic, dispensers loose the ability to use bonemeal on any blocks, droppers wont drop items into water source blocks of bubble elevators, the autocraftingDropper doesnt work, since the dropper only triggers the fallingBlock rule and doesnt craft anymore. By maybe adding a check to the mechanic, that checks if the dropper/dispenser is empty before those issues could pretty much be resolved. Unless I have missed a huge detail ofc