I didn't play the game. If she's is a loli, i guess maybe don't sexually fantasize about her. However not all art is a call to action, or fuel for a disease, even if the character got in sexual situations, sexual motivations are not inherently implied.
You should be allowed to imply something unfortunate happened to a child in fiction, without it being seen as porn, or provocation for abusive behavior.
On another note, some people are sexually interested in older versions of characters that may have been depicted as younger in some point. This is not an excuse, just an example of how complicated interpretation can be.
With fiction I would be more worried about who is exposed to it, than what it looks like. MLP porn can feature adult characters, but we still got to hide it from minors, which Derpibooru has taken steps to do.