Actually, the whole point of these missions (for all the crafting) was precisely so that you didn't HAVE to run around farming nodes.
I realize a lot of people see the slicing nerf as sweet righteous justice or what-have-you, but it went a little too far.
Slicing needed a nerf. That isn't the problem. The problem is that slicers now feel that half of their available missions aren't worth doing. Moderate credits rewards for running them should be the norm, with the occasional crit or failure.
The fact that slicing doesn't feed directly into an actual crafting skill means that comparing it to other gathering paths needs a little more thought than most people are giving it.