  Recently A. Rathke has argued that the KK$\psi$ model explanation of the
discrepant measurements of Newton's constant is already ruled out due to
E\"otv\"os experiments by several orders of magnitude. The structure of the
action of the KK$\psi$ model is even qualified as inconsistent in the sense
that it would yield a negative energy of the electromagnetic field. Here, I
refute both claims and emphasize the possibility still open to reconcile the
experimental bounds on the test of the weak equivalence principle (WEP) with
scalar-tensor theories in general by some compensating mechanism.
