It does make you wonder. The flexing front wing inboard attachment point (not the flap) was said to be AMR and maybe some others. Of which I still haven't found visual evidence (link?). The floor TD was vague and did not specify a new test (that I read) rather instructed that the plank must be one piece and shouldn't deflect in any way, which implies beneficial flex might exist beyond what can be found with the existing three ram lift. Which has to be a small amount of flex regardless, there are not many degrees of freedom between the lift points and the presumably planar (as typical) monocoque and engine/transmission underside. All this said to demystify.
Other factors:
-street circuit
-new floor edge and RW parts not working (seems unlikely though)
-their race pace is generally better
-detuning PU for whatever reason
Never underestimate the pettiness of journalists.