Yikes!! Yes, it was on her to keep the dogs on her side of the trail. That's rotten dog owner behaviour that makes the rest of us look bad. Grrr.
Most people on the trail are really good. The odd jumpy or noisy dog but their owners tend to keep them pretty close. I'm actually more likely to see a racer boy going too fast on their road bike crouched down on the drops - I really think that is inappropriate behaviour on a path with lots of traffic and quite a few bends.
Agreed, if you want to ride that way, you have to be willing to brave the roads.