Yes, it will be crazy unused capacity at least for the first human landing and then some more. But once the system is better tested and refined, the latter of which NASA _is_ investing in Starship for (https://blog.jatan.space/p/moon-monday-issue-70), we will get massive returns, literally. There's also talk in the latest Planetary Science Decadal to evolve the CLPS model by setting up funding mechanisms to allow science community members to fly robotic payloads on such high-capacity Starship flights and really leverage its potential: https://blog.jatan.space/p/moon-monday-issue-74