It is subjective language but for me "near flawless" is a reasonable expectation for a qualification flight. Not perfect because that is unreasonable. A leaking toilet would have been fine if Starliner had one. It isn't a critical system. An off-nominal thruster or two would also be acceptable. They have redundancy for a reason.
The helium leaks were not desirable but helium is difficult. Boeing engineers could demonstrate the rate of the leaks did not threaten the mission so it was manageable.
The thruster issues are completely different. Boeing couldn't present NASA with a convincing model of how the thrusters would perform. If they can't characterize such a fundamental part of the vehicle it is impossible to make an informed decisions which is a huge fail.
In hindsight a cargo first experience would have been valuable for commercial crew whether the winner was Sierra, NG or Boeing however that would have disqualified Sierra and Boeing. Boeing's involvement in commercial crew legitimized it politically. Boeing directly, via acquisition and through their suppliers including Aerojet have decades of experience in space flight far beyond SpaceX at the time. Boeing were not the underdogs.
The helium leaks were not desirable but helium is difficult. Boeing engineers could demonstrate the rate of the leaks did not threaten the mission so it was manageable.
The thruster issues are completely different. Boeing couldn't present NASA with a convincing model of how the thrusters would perform. If they can't characterize such a fundamental part of the vehicle it is impossible to make an informed decisions which is a huge fail.
In hindsight a cargo first experience would have been valuable for commercial crew whether the winner was Sierra, NG or Boeing however that would have disqualified Sierra and Boeing. Boeing's involvement in commercial crew legitimized it politically. Boeing directly, via acquisition and through their suppliers including Aerojet have decades of experience in space flight far beyond SpaceX at the time. Boeing were not the underdogs.