Already said it in another post, so i repeat myself here.
This is a piece of work done by people that wanted to exercitate and show off their own skills. Said skills can go from graphic design, model design, coding, writing, collaboration ( yeah, the ability to collaborate is quite an important skill ) and, in my opinion, in that regard is done quite magnificently, professional level i dare say.
However, take it for what it is: this is not a champion, it is the presentation of a champion concept, which is very differently from anything we will ever see from Riot because it lacks the practical part - it will never be executed beyond this. The whole champion thing is just an excuse to work on the integration of different skills - many artists can do art, but not always they are good at doing art with a practical purpose.
The kit is obviously the worst part of it, but because it simply was not part of the skills that were meant to be shown with this project. This can be seen because next to the kit there are no credits, and when they show the development process they do not absolutely mention any kit proposal - os just something thrown here to show off what the champion is supposed to do, and is done in a such way that shames everything else sadly.
In my opinion the fact that they wanted to add an almost-filler kit is a far worse idea than adding a lacking kit because it diverges the focus on something that is not the point of the work. As i told you, this is not a full champion, so it is not forced to have an enstabilished kit, it could simply have few lines of text showing what he is capable of. In my opinion the kit stands as the most important part of the champion, but to each its own i guess.
Sp, TL;DR : for the readers, don' t judge too much harshly the kit, take it with a pinch of salt.
To the developers, as i said, next time think twice on what adding to your work and with what confidence you do that, because it can cause a lot of divergence like this case.