While I agree about the accuracy of the armor (ANH vs ROTJ), only 54 people are listed on the 501st as having approved ROTJ armor. Based on that and the limited number of people that produce this armor, I feel it would severly limit the number of people submitting for approval. Allowing submittal with ANH or ESB will allow people to get approved and join the 501st / MEPD at a lower cost and easier. Keeping in the spirit of getting people involved. As you will note, even the pack is made from more readily available materials. As you get to level 2 and level 3, the 100% accuracy becomes a requirement.
These are just my 2 cents.