I would find it very unlikely.
The self-energy of such molecules is more than sufficient to destroy any meaningful superposition.
Although Buckminsterfullerene can be shown to have an interference pattern, it would be difficult to have it exhibit cat states* or any other truly quantum mechanical features.
However my main objection is that superposition would be nigh on impossible to achieve for actual chemical configurations. It's only observed for Energy, spin, position, e.t.c. of particles. Not chemical configurations of entire molecules.
The other idea that is subtly implied in the article is that collapse to a definite state can be willed or chosen, which is certainly not the case.
The collapse is totally random, that’s why we have probabilities in quantum mechanics.
*A Cat state is when a particle is in a state which is a superposition of two other states that would be diametric opposites classically.