I mean, the much more obvious answer is that a terminal patient was incredibly thankful to get a sneak peak at a game he may not live to see released, of his favourite series, and was playing the game with my exactly the most unbiased lens.
Which is okay. You don't have to dig any deeper than that, you can just be happy that this person got to play the game.
If it's a real story then of course I'm happy for him. I just don't believe anything on social media or anything that a corporation says. I mean, why would I? We are constantly lied to.
Could also just be a well intentioned skew. A terminally ill person who's already a fan and is getting a special gift from the developer isn't about to say "the gameplay is fine, but it failed to make the most of its niche and has several glaring bugs", are they?
Yea, why not? I can google "cancer patient selfie" on Google and get good pics. How do we know it's real? There have been so many scams like this on Reddit asking for money or games, using similar emotional ploys.