It is good to see Brookings noting the problems with the Boskin approach. But they are somewhat behind the curve on this topic.
Most of the criticisms of Boskin noted by Brookings, and more, are discussed in my article, "Trends in Compensation for Production Workers: 1948-1995," Review of Radical Political Economics 31(4), 133-163, December 1999 Dean Baker's Getting Prices Right also notes selected criticism of Boskin et al but my article covers more. Eric