I don't know if they can beat the Spurs and I believe the Spurs are peaking right now. But not accurate to pull that conclusion from one game particularly since it was the back end of a back to back on a 3 game road trip.
'96 Bulls, '97 Bulls, and the W's only teams +11.4 per 100 possessions in 38 years. (and your very own '08 Celts)
I think the better argument is: the W's can't win at San Antonio and they'd have to take all 4 at home to win the series. Given the SPurs playoff experience and how they are playing right now, hard to see them not winning 1 at Oracle. I think that's the better argument.
EDIT: One other thing to add here (assuming this gets to this point)...Steph's game has changed significantly (for the better) in his years in the NBA. Kawhi Leonard becomes the ultimate decider of this series (again, if it happens) because Steph's TS% is a career high .639 with .442 from 3. His 3PT% will most likely go down on the playoffs and...here's the kicker... .581 of his 3's are assisted. His career average is .621. He's doing much more off the dribble which the W's rely on. This is fairly nit-picky ultimately because they have so many offensive weapons (they are #2 in OFF rating for a reason). But it's not impossible to see 1 game at Oracle where Kawhi takes him out of that rhythm and Klay has an off shooting night and they lose one at home.
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