What is happening is that since people on this site are developers, etc. and not educators, they see things from a limited perspective.
We could swap the nouns in that sentence and it would hold just as true.
In the rest of your post you talk as if nobody has ever considered games from an artistic perspective before. Of course your perspective is valuable, and not a single person on this thread has suggested that you need to know coding or computer science, so I don't know where that defensiveness has come from. All I suggest is that you don't treat our vocation - and the potential vocation of your students - as essentially worthless and something that you don't really need to understand to teach about. When a teacher doesn't care about a subject or doesn't truly believe in what they're saying, it shows.
Besides, if nothing else, we'll be more inclined to help you if you don't insult our work and hobby.
I would never play hundreds of hours of games as that would be a complete waste of time, and could never compare to reading
Again, play 'swap the noun' and you'll understand a lot of people today. If you honestly can't put yourself in that position then it's hard to see why you'd even bother doing this course. If you can appreciate one art form, then there's no reason you can't work to appreciate another.