No need for a Mako type light aircraft? The TX could have been the perfect aggressor training red air threat aircraft, it is also a very important need to continue that type of training for future pilots. The Boeing TX will not be used for that role based on strict AF requirements for TX. So now the AF needs to build another new aircraft to simulate future more advanced and LO type threat aircraft? Or thenAF could just use modified F-35s, but that seems ridiculous not to mention cost prohibitive.
Perhaps the point is that they can 'program' in any level of LO or other necessary conditions into the training system. It's basically a flying, networked, video 'game'.