I definitely agree!
That's precisely why I want the app to support .love bundles directly - everything should "just work".
It's also why the app is signed, btw (so there's no scary warning on install).
I just wanted to point out that even though it's a bit silly that the app extract .love file right now, the situation is pretty much the same as if it didn't extract them - your users (whatever the platform) would have to click "Show local files" and drag the .love bundle somewhere (Linux users probably would have to use the command-line).
The current behavior of the app isn't really worse than either "just not extracting .love files" or "refusing to download them" (folks would still have to know what to do with the .love file they get from the website). It's really more of a planned feature than a bug :)
I'm very much looking forward to ship love support as soon as I can!