Yes, the idle speculation about a "honeypot" method was of artificially encouraging the cancer to evolve in a certain direction, even boosting its growth, until

Yes, the idle speculation about a "honeypot" method was of artificially encouraging the cancer to evolve in a certain direction, even boosting its growth, until it has reliably mutated in a way that makes it susceptible to some other intervention, like being starved or targeted by some particular marker.