The NASA response also spells out a lot of the disadvantages to BO's lander project: Too specialized, too expensive, fuel will be a problem (cryo).
Starship as a lander (and a platform) probably gives NASA a major hardon. If SpaceX can get this working, it will be a massive game changer
1) Large enough to act as a stopgap base/habitat
2) Can carry a fuckload of cargo and crew
3) Reusable
4) Fuel isn't subject to extreme cryo temp requirements (like hydrogen) and can be manufactured on the Moon and Mars in theory or refueled in orbit
5) Potentially can act as a whole solution for direct missions at lower cost (A single SLS launch /w non-reusable vehicle is something like 1B - that isn't sustainable)
6) Platform can be easily adapted to other mission profiles, like Mars
If the platform can be relatively cheap and act as both a cost effective people and cargo solution, that lets NASA focus more of their budget on other things vs. dumping it all of it into an unsustainable launch platform. It also lets them pivot towards a Mars mission more easily, which NASA has wanted to do badly for decades and now finally have a private company that is motivated to make that a reality.