systemctl status not showing CPU/Memory usage?

I have no idea why some hosts could but some couldn't, if you want a consistent behavior, you should enable memory accounting for a single unit or by default for all units by setting:

DefaultMemoryAccounting=yes

in /etc/systemd/system.conf and then doing:

systemctl daemon-reexec

Check out this list thread from the systemd developers, and systemd-system.conf[5].

Sometimes it might help adding these 2 options in your .service file under [Service] block

CPUAccounting = yes

MemoryAccounting = yes