The answer remains for the love and memory of Satoshi, it doesn't matter about any concrete information on Satoshi, the faceless Statue was only erected to remind people that they play as more role in cryptocurrency like Satoshi did. That's why the face was made transparent. Additionally, it was made of Bronze, and it's the work of two Hungarian sculptures, Gergely Réka and Tamás Gilly.
That is the advantage of bitcoin because it is not attached to the individual creator and even people never know who he is and how life can affect him after bitcoin becomes more developed as it is now. People see something different in bitcoin and people see that there are many advantages that can be born so that the statue becomes a symbol as something that needs to be immortalized but it is only a illusion and only part of the admiration that people show.
Bitcoin has given birth to the freedom that is expected especially to achieve a better financial stage. The great work created by Satoshi is a spectacular invention and will probably be the best that has ever existed before in investment instruments.