Hello!
I am removing some stuff from the Crusher and I noticed you seem to have it mixed. You have to remove the output and not the input. It also has trouble accepting ore dictionary. I cant use dustGold I have to specify the version of the dust it makes.

This will successfully remove gold ore from being processed in the crusher
mods.actuallyadditions.Crusher.removeRecipe(<immersiveengineering:metal:19>);

But the logic way is to remove the input stack like this:
mods.actuallyadditions.Crusher.removeRecipe(<ore:oreGold>);

This has changed in later versions it seems in 1.11.2 it was they "normal" way
ref: http://minetweaker3.powerofbytes.com/wiki/ModTweaker:Actually_Additions_Support_1.11.2

Not sure if I need to post it here or in CraftTweaker github.

Mods used:
ActuallyAdditions-1.12.1-r121
CraftTweaker2-1.12-4.0.8
modtweaker-4.0.3

edti: nevermind, I found AA documentaion there. I still think it is a bug you can remove input item and use oredict. but I can post the issue over at crafttweaker github.

This is CraftTweaker.
AA adds no functionality for this itself whatsoever.

Thats probably CraftTweaker issue. Also use the updated Documentation here http://crafttweaker.readthedocs.io/en/latest/#