I own a 2009 Murano and after snapping the wiper blade that I was trying to replace (I wasn't being terribly careful knowing that it was worthless), I figured it was a good idea to seek some advice before potentially doing damage during the installation of the new one.
I can confirm on the 2009 Murano, you can remove the cover off the base of the wiper, remove the 10mm bolt, and with a small bit of force pull the wiper assembly straight out (noting the position of the assembly). At that point, you can very easily attach the new wiper blade, replace the assembly, bolt, and cover.
Thanks for all the help, folks!