Interesting. While I agree wholeheartedly about truths being discovered and not a product of artists or philosophers, I would argue that the explanation and analysis of the discovered concepts effectively can enable more people to discover those truths.
At least for me it was necessary at some point to even realise that I was mostly consuming the direct interpretation of almost all art and that finding truths and meaning outside of my existing views required effort. Had there not been people pointing out deeper layers to some films or games, I might never have started forcing myself to reflect and thus discover things for myself.
I guess what I'm trying to say is that understanding art requires the notion that there is something to understand. I have become much more critical and less opinionated the more I studied what other people say and think. In that sense, it is quite important that there are people giving examples of how to analyse and interpret art and media. And it is not the same thing as pre-digesting meaning for you that you can either accept or reject.