I think the plugin has to strip out the EXIF data, at least the data concerning image orientation. Otherwise, while fixing orientation of photos for all others, the photos would look rotated on iOS devices.
Thanks for the feedback! I didn’t think of that application of it, but it makes sense.
Regarding your suggestions, you’re in luck! These are both things that I’d like to include in the future. I don’t have a timeline for the update, but I am making a list of features to work on. Thanks!