You move a number of items out of the basic crafting category, such as rockets, but you dont add the new category, pressing, to modded assemblers.
This will impact any mod that defines crafting categories for themselves instead of doing a deepcopy and then altering.
Simplest suggestion since you are primarily vanilla focused would be to copy the recipes and change them after, rocket>pressed-rocket
Alternately, you could look for prototypes with category, crafting, and add pressing
Otherwise upgrading will randomly delete recipes from production

As a partial idea looking at your code, if you search entity and compare for string with assembler, that would help
Ditto for chemical and other
It wouldnt be the best of ideas to be authentic, but it would work as a stop gap for the manual labor

This is obviously very old but I wanted to address it anyway: while I can add pressing to modded assemblers in this way, pressing is already the base-game category for recipes that can be made in both assemblers and foundries. If other mods don't have this in their assemblers, that is not necessarily my problem. Same goes for electronics and being made in assemblers and EM plants.
I've been vague about mod support in the past, but this sort of issue can't have priority over the core of the mod in the future.
This being said, I have taken some of your suggestions into account, but covering every possibility is tedious and time-consuming.