Outbound Routes MOH not working

I was making an outbound route for a specific set of extensions so I could give them custom hold music as this post suggested:

https://community.freepbx.org/t/music-on-hold-change-default-group-for-hold/34329/3

I was under the impression that setting this up this way would make 1170 use the custom MOH instead of the default when making an outbound call. Do I have this setup correctly, do I have the wrong idea, or is outbound MOH not working properly?

Freepbx 14
Distro 7
Asterisk 13