Yeah, they used to have a filter allowing me to select only PC files, but that vanished with the new setup.
No, DAZ 3D is in the process of changing to Zip files, which will not be OS specific.
Initially there seemed to be +/- for installer vs zips especially for new users who zips can be confusing for. Over time working with both I have to say I have become a big fan of zips in general. An installer that works with the zips to help the new users (and long-time users who the installer works for) seems the way to go. One of the nice thing about this is, people can write alternative installers, since zip files are a standard.. as long as the naming convention and structure becomes more standard.