Playoff Paradox

The San Francisco Giants, straight from breaking my heart and beating the Padres on the final day of the season to win the NL West, have gone on a bit of a roll. They beat the Braves in 4 in the NLDS, and currently hold a 3-2 lead on the two-time NL champ Phillies in the NLCS.

All is great in the Bay Area. To wit: a story in SI.com yesterday, per Ann Killion, called "San Francisco is falling in love all over again with the Giants" (emphasis mine):

Or maybe, dude, they have other things to do instead focus on total downers. It may be that lack of obsession and self-flagellation that makes outsiders think Giants fans aren't rabid or savvy. One of the talking points of this postseason has been, "Hey, Giants fans are really into this baseball thing," as though it's somehow surprising. The Braves -- who often don't sell out postseason games -- noticed. The Phillies -- who think they have superior fans -- have noticed. The Giants fans are loud. Unlike their counterparts in Los Angeles, or the fans at the new Yankee Stadium, they stay until the end of games.

Well, sure. Sounds lovely! Giants fans rule! They- erp, what?

From the AP's game story - also found on SI.com, natch - of Game 5 of the NLCS:

Werth's solo homer in the ninth quieted the raucous sellout crowd of 43,713, and many fans began making for the exits even before the final out.

So, which is it? Are Giants fans the bestest baseball rooters on the planet, or are they so pessimistic about their team scoring two runs off probably the sketchiest closer left in the postseason that they hightail it out of a potential pennant-clinching game?

I'm so confused.