Make sure to always fade the split shade media container

When only fading while gone, it could lead to issues
when fading out during non-split shade, especially during
initial initialization. As there's an inherent race,
we instead fade the host always, regardless if it's GONE,
as this doesn't have any negative side effects.

Fixes: 188884830
Test: follow steps on bug, observe no issue
Change-Id: I54813a8f153713ff558409b67cd515c605afe9e3