sure you can, but you have to to set everything up properly and 99% of users have no clue how to use SMB or NFS. It’s why we don’t support it (also, it’s not supported at all for databases, including sqlite)
the recommendation for mounts is always to use docker to mount things to docker 
thats why we have nfs and cifs driver types in compose.
he didnt show anything called cifs_sabnzbd which means you changed something and we can’t help you without seeing what you did wrong. What he showed it the proper docker way to do this.