So this is not a baseless wish to have the same in Emacs.

With the recent introduction of `replace-search' in replace.el
it's straightforward to implement this in Emacs where
`(isearch-forward t)' in `replace-search' could be replaced
with `(isearch-forward replace-forward)' where `replace-forward'
is a new option that can be changed in `isearch-query-replace'
according to the current value of `isearch-forward'.
The benefits of this feature is that it will replace exactly
the same matches that are lazy-highlighted and visited
by the backward isearch.