Verifying Intel ME neutralization doesn't work

I own a Librem 15 v3 with Debian Bullseye.

I followed the instructions on to update Coreboot to 4.16-Purism-1. Everything worked as described until I tried to verify whether or not Intel ME is neutralized. After entering “sudo ./cbmem -c | grep ^ME” I don’t get any result. Do I have to worry?