That reply was in response to error reports like “this mod does not work.” If I can’t reproduce the problem myself and have seen it work on hundreds of sites, then an error report with no detail whatsoever isn’t going to help anything get fixed. Luckily, someone else did provide sufficient detail (on my own support page), so I just submitted an update that hopefully should resolve this.
Do note however that downloading and installing the plugin manually has always worked – this problem only occurs via downloading and auto-activating the plugin from within the WP admin panel (which a quick Google of the error message turned up in its first result).