Comment on “B→M1M2: Factorization, charming penguins, strong phases, and polarization”

We show that the factorization formula for nonleptonic $B$ decays to two light flavor-nonsinglet mesons derived by Bauer et al. in the context of soft-collinear effective theory is equivalent to the corresponding formula in the QCD factorization approach. The apparent numerical differences in the analysis of $B\to \pi \pi$ data performed by these authors, as compared to previous QCD factorization analyses, can largely be attributed to the neglect of known perturbative and power corrections.