I have a lot of good ideas and I am really good at texturing/sprites, however when I look at coding I get a headache pretty much right away. I think that it's great that there exist programs that provide "templates" of sorts, that you can modify with your own content. It's pretty arrogant to sneer at those who find such programs helpful, since there is obviously a need for it.
Everyone can learn coding but with different results and in varying amounts of time. Who said that I didn't already try several times? In the end, the effort and setbacks outweigh the reward.
So no, doing it myself won't give me any satisfaction when I could have used software specifically created for the end purpose in much less time. The coding part is not the part I take pleasure in, sadly. I did not ask of you to teach me java either, just to help me understand an issue with a Forge-backed software. I understand you have no answer to the actual question, that would in itself have sufficed as an answer.