...are you sure about that? They're both smelting machines that can uncraft anything in the game, and do so by looping over all recipes in data.raw, and adding a reverse recipe for the machine using that information. Right? The logic in the loops might be slightly different, but I'm pretty sure they both go through the same process (if recipe exists, grab recipe's ingredients, add to resultant's products, use recipe as ingredient, etc etc)
Another thing, again, since the mods probably share the same codebase, I imagine that there are some things that cannot be uncrafted, mainly things that have more resultant products than output slots on the machine. Most notably, in vanilla, the Satellite cannot be uncrafted (it clogs the machine, until it's placed and replaced, and doesn't uncraft the satellite), because it turns into a bunch of items that only stack up to 10, which requires more output slots than the machine has.
The other recycling mods do things differently (one is an assembling machine, the other "melts" things down into plates, etc) but these two are almost exactly the same (again, because of their origins). It's okay though, too bad since mods can't be removed from the portal.