The add all button is missing

I'm sure it was intentional. You now have to click on the individual keywords you want to add. I think it's actually an improvement, because previously after pressing "add all" I had to review and delete the inappropriate keywords. 

This is probably by design. A lot of contributors are experiencing "similar content" rejections that could be related to the use of unnecessary or often used keywords. Removing the add-all suggested keywords probably shouldn't have been there to begin with, since they were often unrelated to the image in question.