It's definitely a fair assessment, I view it the same as to: Why bother watching a tv-series or an anime or a movie? We can't alter the story. We're just spectating what happens, but that doesn't mean the movie/anime/series can't be good and enjoyable to watch.
For me, the downsides of adding choices outweigh the positives of not adding them at this point my journey. I've only started end of last November. I still have a lot to learn and in the future, I hope to be able to create something truly unique and meaningful. (I'm not saying Shadows of Amibition isn't meaningful, I just don't have the available resources to do something like that currently.)
If that means for certain people that this game/comic/novel is shit and not worth a try, so be it.