To recap. In 2007 we had the EMS which was good. In 2010 we have the EMS, the EAC, and a fully featured toolbox. In 2013 we now just have the EAC and one tool left in the toolbox. Half the features are now missing from the Exchange UI and we are required to use command-line to configure our servers. We can't even get the default EAC to load without a certificate error right out of the box because it requires us to go into the command line and configure certificates.
This is a massive step-backward in functionality that only serves to assist with the cloud services. It's an absolute slap in the face to your onsite IT folks. If you are not going to write Windows applications, then please just port Exchange to FreeBSD or something else that will work even better with command lines than Windows does. Windows is for Windows applications. If you are not going to write Windows applications and Windows UI anymore, then stop shipping Exchange on Windows and put it on Unix where it belongs.