Tested with https://github.com/uutils/coreutils/releases/download/0.2.0/coreutils-0.2.0-x86_64-unknown-linux-musl.tar.gz

> file coreutils
coreutils: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-x86_64.so.1, stripped

This appears to be a regression, or a change lacking explicit communication, as the previous builds, namely 0.1.0 were statically linked proper.