Unfortunately this doesn't make the lengthy previews ok. Some short pieces still go beyond the 150 word limit of a shortform. So the unusually long previews that Medium displays still often allows for the bulk of a piece to be read in preview without clicking the read more and going to the story page. IMO previews should not be as long as they are. They're meant to give reader the hook, not half the piece.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store