Right now, if a device is listed in fstab but its mountpoint doesn't exist, uam fails to mount it using fstab and mounts it as usual. I guess it'd be a good idea if it could create the missing mountpoint itself and use that name. An example case is /media/cdrom mountpoint with /media on tmpfs.
Too complex to implement, too small benefit, especially now that we automount ejectable media as well.