That's not going to work, it's how CIFS/SMB works. You can't mount a host, just a share. Sure, the file browser shows you the available shares, but even on Windows (using Map Drive) you can't do that.
Maybe there's another solution with an intermediary program that reads the shares and mounts them separately so you can see them side-by-side, but underneath mount will still only map each shared folder.
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