I am a French and Spanish language teacher at ESO. I understand that the art and science that STEAM wants to show is more related to science subjects. But, equally, it is possible to integrate this technique into the arts subjects, although it might be a little less productive.
As far as I have been able to observe in the video, the explanations of the theory end up in a final practical project and not in a written test as we are used to. If the students see what they have learnt in the form of a work of art, their understanding or visual retention will be greater than their memorisation. Seeing that today’s youth is over-stimulated, perhaps this is the best way for them to learn.