If taken as a whole (ie reading huge sections of the comic at once), then no, it doesn't come off as 'too serious'.
But just reading it from day to day? Ugh, it tries way too hard to be what it is. Its like the anti-Sinfest.
I read it daily because it's part of the list of webcomics I go through each day, but it and lfg are probably the first I'd cut out if I ever bothered.