Until one considers that the US government paid reparations to all other US protectorates for both failing to protect them from invasion and for signing away their right to gain reparations from the Japanese in the Treaty of San Francisco in 1951. Check out the report Don Young (R-AK) submitted in 2000.

This, from your link, makes me think that I was wrong:

(19) In 1962, Congress passed Public Law 87-846, which amended the War Claims Act of 1948 and addressed the remaining United States citizens and nationals that had not received reparations from previous enacted laws.
(20) The people of Guam were excluded from the 1962 law because Federal policymakers believed that they were included in the War Claims Act of 1948.
(21) As a consequence, despite the study and recommendations of the Hopkins Commission, which concluded that reparations for Guam as provided by the Guam Meritorious Claims Act fell short of rehabilitating the island and redressing damages suffered by its people from the occupation of Japan, Congress failed to address the recommendations of the Hopkins Commission under the War Claims Act of 1948.

I spoke from a position of ignorance--I hadn’t realized that the previous payments had been so extensive. From that point of view--no matter how much the idea irritates me--authorizing these payments would seem to be the right thing to do.