Link doesn't load, so with only the title to go on...
It feels like it's implying that sincere is the opposite of cynical? But someone (me) could be sincerely cynical. Or falsely optimistic.
In any case, signaling sincerity sounds a bit like fighting for peace, and doesn't give me high hopes for this article whenever we do get to find out what it says.
(It _is_ sort of fun to have this playground though, where we can all just freely admit we didn't read the article, and riff off the title alone)