Reviewing the mailing list threads on this, it looks like there will be an option to revert this behaviour: https://yhetil.org/emacs/87h6kr9817.fsf@posteo.net/#t
It seems like this option was mentioned before the original post was published, but perhaps the author didn't see this? I assume this would fix the issue, but I may be missing something.
--
EDIT: it looks like this will still require a RETURN keypress, based on the reply from ginko below.