We know from the storyline that Johnny and Cassie are descendants of an Ancient cult that bred warriors to specifically fight against Gods. And in MKX Johnny was able to tap into that power to defeat Shinnok, but at the end so does Cassie but to defeat an even more powerful Shinnok who had even surpassed the power of Gods. A lot of people say it's bad writing or doesn't make sense, and I would agree.
BUT, what if the energy that Johnny and Cassie both tapped into wasn't their own personal strength or power, but the power pool accessible to ALL the descendants of that line of warriors? I'm not sure if they'll revisit this in MK11, maybe in Cassie and Johnny's ladder ending, but I just feel like they could have expanded so much more on that idea and made it really great.
BUT, what if the energy that Johnny and Cassie both tapped into wasn't their own personal strength or power, but the power pool accessible to ALL the descendants of that line of warriors? I'm not sure if they'll revisit this in MK11, maybe in Cassie and Johnny's ladder ending, but I just feel like they could have expanded so much more on that idea and made it really great.