Nah dude, your run here was fantastic. Using a kill that is not in the challenges is fine. That video is my first Marrakesh Pro run, so for me, doing one not in the list is counter-productive. Plus I do walkthroughs that people can follow and potentially improve upon.
I started to explain what I meant in the video by shortcuts. Starting at a location in the mission in the disguise is a shortcut. Anything that bypasses obstacles you would normally have to deal with is a shortcut.
Ex. In Bangkok, starting in 47's suite is a shortcut because you don't have to deal with cameras but the ICA safehouse in Sapienza is not because it just saves you a few seconds.
Also in Sapienza, starting at the Harbor or the ruins is still a legit entrance to the level. 47 used to come in by speedboat in earlier games anyway.
^^^^These starting locations are shortcuts. How did he get there AND get a disguise?
I also don't personally like using FE kills or kneecapping people as a "distraction." I use the disclaimer that I don't knock anyone that does because this is my personal preference. This is why I don't have any speed runs.