VLC doesn't even seem to be fully ported to Android yet.
Then, Android is quite much more far from a Linux desktop stack than an Ubuntu phone. It notably has a different (very broken) libc, pthread implementation and different audio output stack...
Porting and shipping all features in the default build are 2 very different things...
Very little features not possible (mostly because of the OS) can hardly be considered as "not fully ported" as meant by salient.
1: https://play.google.com/store/apps/details?id=org.videolan.v...