Yes, this is exactly where we met Merida on 10/25. However, she is not the only princess meeting in this spot. We also saw Belle there. At least on the morning of 10/25 they were rotating between Belle and Merida. So if you go to this location and Merida is not there but another princess is, I would ask if she will be swapping out or meeting later.
For reference, the bridge leading toward the hub or BBB is off toward Merida's left (and that is where her queue was) and the queue for the Royal Hall is off toward her right.