In fact, one of the papers on which the journal’s stand was based was more realistic. “Our [30-week] proposal, then, would not prevent sex selection. Rather, we suggest that it would permit health care providers to navigate ethically the meaningful application of the SOGC policy of not supporting sex selection while maintaining patients’ rights to full disclosure of medical information.” In other words, the 30-week rule is just a sop for doctors’ consciences.
In other words, the measure wasn't proposed to effectively stop sex selection abortion. All it is supposed to do is ease the conscience of healthcare workers.
And I don't get how waiting until 30 weeks gestation satisfies the right to information. You have a right to information from conception.