Hmm I was pretty sure I heard that the grounds that Obama objected to SOPA over were cybersecurity ones (the removal of DNS would apparently leave American networks open to attack) rather than social/political ones. But that may have changed after public opinion showed to be overwhelmingly anti-SOPA.
EDIT: Seems that Obama's spokesperson did come out with something about freedom of expression
Source = http://www.texasinsider.org/?p=57474
So perhaps we can suspend cynicism for now