The KLS flagship - a KOEING/KeedMartin joint programme - completed two crewed flights to LSI and two successful dockings. The vehicle represents the program's first second-generation crewed platform and the first major KOEING/KeedMartin collaboration since the station module contracts. The flagship performed within parameters. This is, again, the point.
The X-1/X-2 SSTO programme did not perform within parameters. Both vehicles failed to achieve stable single-stage-to-orbit flight. The programme has been grounded. Ludcan Kerman, the programme's lead test pilot, has been grounded with it - not by disciplinary action, but because there is no vehicle for him to fly. The Herald understands this to mean the SSTO programme is suspended indefinitely.
NASA has not commented on the SSTO grounding beyond a brief procedural statement. The KLS flagship is now the program's primary crewed vehicle for LKO operations. The Herald's assessment: the program bet on two paths. One worked. The other did not. The pilot who flew the one that did not is now waiting for a vehicle that may not come. This is how programmes make decisions about people.