It does because using even basic magic is a very complex process that requires very hard calculations. What Shizuku is doing is paying attention to every single atom in the water and purifying it:
ÒÇîYeah… everyone thinks that water loses to electricity, right? But no, when water does so it's because impurities like ions and microbes in the water make it conductive. Water becomes less and less conductive as it becomes more and more pure, until it becomes ultra-pure and forms a complete insulator that electricity won't pass through.ÒÇì
ÒÇîI see… oh? Then why don't other water users copy this tactic?ÒÇì
ÒÇîIt's not that they don't, they can't. Completely removing impurities at the ion level is like sifting gold dust from desert sand. Only Shizuku-san's level of magic control allows her to perform such a technique. If an ordinary knight tries to copy this maneuver, won't his mind burn out first? *Cough* As you'd expect for the first-year runner-up… *guh*!ÒÇì
She's removing impurities atom by atom until she purifies the water.
Shizuku needed to pay attention to every single molecule of water, removing any impurities to create pure water that had an attribute of insulation, to dodge the lightning. It was an extremely nerve wracking, delicate operation.
When as i've said before even something as basic as throwing an ice shard:
"......Who knows? But since I only wished ÒÇîWin this gameÒÇì, I don't really understand it. However......there is such a saying - people make mistakes. As long as you are a human, any action definitely contains the possibility of failure. Taking one step with your feet. Even though it's such a simple action, there are people who twist their ankles, or get tripped by a small stone, resulting in failure. Let alone magic, which requires complicated configuration operation and trajectory calculation......it can't be helped if you failed, right?"
So yes, the sub atomic calculation is a thing, it's very hard, and yes, people's minds would burn out if they tried to do it. Trackless Step still works.
@Sir
Yes, let's end this. It's just not enough, you gotta tap into your unconsciousness or literally lack it. By very feats whatever you're arguing is useless. Trackless Step works, i do not have the intention on arguing any further on this. So last point:
Does he have anything that would make him better than Shizuku? No.
Can he tap into his unconsciousness? No
Does he lack unconsciousness? No
Trackless Step works. This is getting like the usual "i can make out what it is so it obviously doesn't exist" level of arguments.