We are developing in various china shops and our plans are to deliver price history in Aliexpress, Gearbest, Bangood, etc. Most of the plugins are done this way as everytime we developed new feature for website, we would need to reconfirm from all users permissions. From our experience, many people dont understand this, of dont update addon, so updates are not deliver to user. in 99.9% it is because they down know what is needed to be done. Hopefully you understand the reason of full access and change your mind :) Take care.