qemu for armv6 crashes on beefy8, but can't armv6 be natively run on ampere?

From: Yuri <yuri_at_FreeBSD.org>
Date: Tue, 20 Dec 2022 05:53:22 UTC
qemu crashes while building some ports, like science/arbor.

But isn't ampere able to run armv6 code natively? If this is true, why 
are armv6 builds run on beefy8?