Hey there--resident tropical weenie here.
Recon can incredibly useful, as it provides hard observations for areas that may not be sampled as well as they would be over the U.S., which in turn makes the initial conditions the models rely on to make their projections more accurate.
So here, since they're sampling that Baja energy, it'll probably aid in more precisely projecting its intensity and speed. We're so close to the event that I doubt it makes a huge difference, but it just closes off one of the unknowns.
Hope that helps.