If you are unable to download this app it is because there is something amiss at your end, perhaps you are using Internet Explorer, whatever... this file downloads properly unless there is something amiss at the user's machine.
Of course, and this has always been true for the Mac platform, IF you have trouble downloading this or any other file from another other website, you can OPTION-CLICK on the download link OR you can use the Contextual Menu and select "Download file to disk" (or words to that effect).