Installation Confirmation Message

I just finished installing SQL Server 2005 Express Edition.  At the end of the installation process I received a confirmation message.  It says:

SQL Server 2005 Express installation confirmation

I added a red rectangle to make my point clear.  Reading the information in that rectangle I actually thought the installation encountered some errors.  When I looked at the log, everything went fine.  Then why isn’t there any message in this confirmation window stating that the installation was succesful?

Again it is clear to me that confirmation and error messages should be clear and meaningful for the user.  Developers have the responsibility to think out of the expert box.