my problem with the freezer paper method is it doesn't help in any way for the stretch or distortion of the fabric or block.
the freezer paper method to me, is just regular piecing expect you have a guide to follow. i say, just dump the freezer paper and piece the project.
the whole point of the foundation is to provide stabilization to bias and/or very unstable cuts and to allow for working with pieces as small as 1/4 square.