No, it'd be a terrible ebook reader display. RLCDs are very hard to view in poor light especially color ones and don't have the same perfect viewing angles.

For mostly static monochrome content like text in an eBook eInk is a good fit. There was a few reflective LCD eReaders in the late 2000s, early 2010s but they fizzled out pretty quick once eInk devices reached an acceptable price range. Their only value was being cheaper.

but eink doesn't refresh at 60hz. it's static. for text eink, but for video rlcd handles it better