One would think so. It wouldn't surprise me, on the other hand, to see the a conservative majority twist around its pretzel logic to reach a desired political end. They went one way on Lopez, and another way on Raich, for what I believe to be political reasons. No matter the outcome, we will remain at the whim of an unaccountable, all-powerful judiciary limited only by its own imagination and creativity.
The reason the Courts are unaccountable is because the legislature, which has the power of impeachment, prefers to use the Courts to implement unpopular law. Congress and the Courts are in cahoots, against the constitution. See Heller and upholding unconstitutional parts of the 1934 NFA.
That the people don't demand impeachment and removal of judicial hacks is just another example of how the people permit their government to run wild.