I want to explain a little something because I think it might help. What I'm understanding of the disconnect here is about whether the author wanted the further suggestions. I think that's where it derailed. You said you left suggestions if the author wanted them, but it's better to reserve those kinds of in-depth suggestions and critiques for when the author specifically asks for it.
Believe me, this is also really going to improve your reader experience, because any act of creation is inherently vulnerable, and some authors can be pretty sensitive to critique (in any form), and rightfully so. From reading their bio, Fir has a full time job and teenage kids, so I'm fairly certain she's developed a rather thick skin at this point, haha. But you may come across an author who has not, and they may lash out at your uninvited suggestions.
Commenting is always encouraged! One of the best things about interactive fiction is the interactive part. Not just as a reader, but as a community. Engaging with the author and other readers. This is always good! I would just recommend that you wait for an invitation for the kind of critique that would necessitate any reworking or editing, before you give one. It's just a good practice for all parties involved.
I would definitely recommend you keep an eye out for Fir's new IF "Cantata", though. She's creating many more perspective options, including a touch-averse one (when choosing the element that naturally utilizes touch). I can't speak for the author, but from her writing alone, I can tell that she tries to explore the human condition with all the depth and grace it deserves. And it seems that's what she strives to give each perspective, rather than a vague or easily-dismissed mention. I think that's what drew us all here in the first place. :)
Oh! And I'd keep an eye on her tumblr. If she does want reader opinion on anything specific, she often posts about it, so that's definitely the time to give such suggestions. I hope this gave more clarity about the situation.