Android Plugin: Device Filter stripping error with .aar files

Recently noticed that even though I set a Device Filter to ARM or X86 .aar plugins that contain native files in jni folder won’t get stripped.
But native plugins in Assets/Plugins/Android/libs/armeabi-v7a or Assets/Plugins/Android/libs/x86 get stripped.
Anyone else noticed this?

Unity Version 5.6.3f1
Build System: Internal (default)

We’re seeing the same on 5.6.1 using gradle / IL2CPP. We didn’t have this problem without IL2CPP though. I don’t suppose you happened to find a nice solution for this?