LOL! Who is trying to "correct" the KJV? Most of us care most about what the original manuscript said - that is what we are trying to find out.
The original manuscript, not the 1611 KJV is our standard.
If someone can produce the original manuscript that will be the proof? LOL!
So which is Christ's messengers, seventy two or three score and ten? Problem solved right... KJV is the spirit of Christ and all others are spirit of antichrist. There is no doubt nor debate about which version is right. It doesn't matter what any copy or copy of copies of "originals" say.