The government fuels positive sentiment around pretty much all of its policies. It doesn't go round saying 'our policies suck' because that would provide an opening to opposition.
I don't see many television commercials for, say, the USDA's Rural Development programs. The absence of such television ads isn't them saying that those programs suck either. Being quite about it is the default position, spending many millions on primetime television ad spots to push it is exceptional.