Yes Giorgia did surprise me too...especially (if I am not mistaken on that) because he is talking about solving porpoising and fixing the floor and then he refers to his red arrows AND there you see that he highlighted both crash structures. Yes the lower one could be used very clever by Red Bull to stiffen the floor. But the upper one, has nothing to do with floor/porpoising and for sure nothing with stiffness.
Or am I doing bad on him because I misunderstood his tweet?
Edit: And i am pretty sure RB did not change anything regarding th crash structures (at least for now, cause no new chassis introduced ... but maybe that is the reason why he refers to the CS because he thought new chassis. but then pls double check Giorgio )