I think you misunderstood what the parent was saying.
On the technical level, you are correct in that in both scenarios the end result would be the same, as you are going from compiled code to decompiled code.
What I believe the parent is saying, is that applying this to Panzer Dragoon accomplishes more (on the human level), because devs of that game don't have the original source code anymore, while Super Mario 64 devs do.
On the technical level, you are correct in that in both scenarios the end result would be the same, as you are going from compiled code to decompiled code.
What I believe the parent is saying, is that applying this to Panzer Dragoon accomplishes more (on the human level), because devs of that game don't have the original source code anymore, while Super Mario 64 devs do.