Most lawyers, law professors, and judges are familiar with two standard critiques of formalism in legal reasoning. One is the unacknowledged-policymaking critique. This critique argues that formalist reasoning purports to be above judicial policymaking but instead simply hides the policy decisions offstage. The other is the false-determinacy critique. This critique observes that formalist reasoning purports to reduce decision costs in the run of cases by sorting cases into defined categories, but argues that instead of going away the difficult questions of application migrate to the choice of the category in which to place a particular case.
Bagenstos, Samuel R. "Formalism and Employer Liability Under Title VII." U. Chi. Legal F. 2014 (2014).