BTW, Ashley, Is not it better to create a eclipse or Android studio template with crosswalk webview in it? So, a user like me just need to replace the folder "www" and compile the files into APK easily. Moreover, Android studio or even Eclipse can handle all the signing process too.
Because we target primarily non-technical users. Asking non-technical people to "just" install the Android SDK doesn't make much sense IMO, so we tend to guide people to publishing services like the XDK that handle it for you. Of course if you know how to do a custom Cordova build yourself, go for it.