The reason Jamie has a Hacks section is to demonstrate some noteworthy hacks (not some retarded Mario frustration hack, pornographic Nazi Mario 3 hack or some cheating hack).
If you feel that the Ninja Gaiden 3 hack is noteworthy, please make your full case (especially considering that there are people who actually have beaten the US version of the game without any special assistance).
Being tasteful in any and all endeavors here naturally being a given (pornographic Mario, uh, you have no argument here as to not having it), this reason sticks out to me the most. If we include an "easy" hack of sorts for Ninja Gaiden 3, then there easily could be an inundation of requests for easy hacks of *notably* Contra, Super C, Double Dragon, Ninja Gaiden 1 *DAMN 6-2*, etc., which nobody I think would want. This might be reason alone to not include such...
However, as being one of those referenced that balks at the use of special assistance, I also realize that most people today seem to not have the patience they once used to *but we'll save that discussion for the Intelligent section*, and maybe some of them would want an easy version of NG3 just to at least have the sense of accomplishment garnered from when they beat it... to some extent... even if it's not the original...
Conclusion: Okay, I'm a bit on the fence, but being
if implementation/time/online space-wise are not a factor, then... why else not?