It could if you/future owner ever need to re-enable it:

The trouble is not your present boot; it's your future boot. If your older PC's firmware never gets the 2023 keys, and the rest of the world starts assuming those keys exist, you can end up stuck in a weird limbo. While your existing Linux install will still boot, a new or updated distro won't.

Testing now will help diagnose future problems.

https://www.zdnet.com/article/aspirin-for-linuxs-microsofts-secure-boot-headache/