Gallery Extremely Buggy in 2.8.4

Is it just me or is the media library and gallery still getting significantly worse in every version?

New bugs after upgrade from 2.7:

By default, all images have BOTH the Medium and Full size radio options selected.

Uploading an image, then clicking Insert Into Post fails to attach the image to the post, so it will not show up in the gallery sections.

Gallery tab completely missing in the Add an Image dialog unless you go to the Media Library and Insert Into Post a second time for the same image.