I just brought it up because the amplitude is lower in Aud-lh then elsewhere (it's around 1.5 like for the plot_lcmv_beamformer.py example, whereas the maximum across the whole source space is around 2.2 like for the plot_lcmv_beamformer_volume.py, where the label isn't used)

But yeah, the results are reasonable, so we can drop it, there are far more important issues to deal with in this PR.