Two use cases I've had in recent years (technically not 2018, but well…): - optimization of simple functions that are called a huge amount of times (the only viable alternative to assembly being intrinsics that come with their own portability constraints), - just in time compilation.

Additionally, knowing assembly can help a lot when debugging weird crashes in code written in higher-level languages. gdb's asm layout is an awesome resource if you know how to use it, but someone who's never used assembly before will probably not even consider using it.