Via the Gpg4win support channels, we had meanwhile two reports of people that tried to import only keys (probably pubkeys and secret keys) not working. It turned out to be ignored PGP-2 keys.
So I'd think it is a use case that during key-import, it is more clearly visible why a key import
did not work.
gpg: ASCII-Hülle: Version: GnuPG v1.4.9 (MingW32) - GPGshell v3.64
gpg: Anzahl insgesamt bearbeiteter Schlüssel: 1
gpg: ignorierte PGP-2 Schlüssel: 1