While playing (and watching) Konquest, I notice that sometimes after messing up a long combo or a special move, if you use the ending button normally and strike the AI, it completes the combo/special and moves onto the next attack.

What I am wondering is if there is a way to manipulate the game into doing this, or if it is just completely random

I finally solved this. False input glitch is caused when you have the specified special move interrupted by getting hit during its startup frames. The game sets the flag, even though the special doesn't happen, and from that point the next attack that you throw out will be considered correct regardless of what it is, as long as it hits the opponent. If it misses, it resets. If a way was found to cancel a special move's startup frames manually, then this may be considered useful, but until then, I don't think it's beneficial.

I feel like this could be in some cases (in particular with Ashrah's training) you can bait her to hit you whilst performing the spiking projectile to skip it if need be. It could also be potentially useful during Scorpion training with the Hellfire special if need be as well. It can very well be useful with tricky specials that the AI just does not like to be hit by during the parts of training when they move around during the special moves portion