I haven’t looked yet to see if you’re stripping ALL EXIF data or just some of it, but if it’s all EXIF data that’s getting stripped, you’ll clobber color correction for any images that aren’t sRGB, which makes snap.as useless for “professionals.”
Not trying to slam you here, just pointing out that there’s a lot of critical data in the EXIF. If you have questions, I’d be happy to try and answer them. I’ve written a couple JPEG and TIFF parsers, beginning in the mid-1990s and know something about the standards. Also worked on Photoshop for over a decade before retiring.
That said, fixing the rotation problem will make a lot of people happy. Thanks for tackling that. I just worry you may have used too large of a hammer.