I don't really agree with this. Someone could definitely be an engineer in one area of coding but have absolutely no clue when it comes to doing something else,

I don't really agree with this. Someone could definitely be an engineer in one area of coding but have absolutely no clue when it comes to doing something else, but they could find code on StackOverflow and put a working solution together. Does that drop them back down to hacker? I don't think so...