The RemovalTool does not delete the alias to the Adobe Uninstaller package in /Applications/Adobe Acrobat X Pro/. When RemovalTool attempts to delete the Adobe Acrobat X Pro folder, it fails because it's not empty. That's your error.
If you remove the alias first, using the command "rm /Applications/Adobe\ Acrobat\ X\ Pro/Acrobat\ X\ Uninstaller", the RemovalTool command will delete the /Applications/Adobe Acrobat X Pro/ folder and exit as you wish.
For what it's worth (and for the record), the RemovalTool in Acrobat Pro XI deletes the alias properly.
Thanks for the original post; I was looking for instructions on uninstalling Acrobat Pro at the time!