I saw that as well. It definitely jumped out at me as the "match of the day". Given the later start time, I'm tempted to cut out of work a bit early and check it out. I don't know Austin's game at all, but I know Krista's decently well. Based on all of the press I've read about Austin, I'm expecting her to pull this out--perhaps easily--especially if she moves Krista around and has a solid dropshot in her arsenal.
This surprised me as well, but more in the case of Porter than Woolcock. Even more surprising to me is the fact that both of their victors then turned around and lost in the next round, so it's not as if Porter and Woolcock played "red hot" opponents. (Same thing with Liang.)
The season is obviously really early though, so no need to panic just yet.