I'm not using any group chat, so for me personally that's fine.
so far wire is not available on f-droid either, although it's unclear (for me) whether their client now runs without the google play framework. there's discussion about it [0] but no clear answer yet (or I'm missing something).
the moment it's available through f-droid, it's a different story overall.
[0] https://github.com/wireapp/wire-android/issues/5