I think this is a radical simplification of what is a complex problem. Genetic engineering as a whole is known to be an area strewn with moral hazards, and not least harks back to some of the darkest days of 20th century science. Having an ethical outlook isn't a form of heresy, it's a form of societal safety. We need to accept that some of these ideas (probably not all - it's always difficult to get on the right sid…
Having an ethical outlook is a great idea. And it's good to criticise ideas you think are unethical. The point of the post is that just because a person presents an unethical idea doesn't make that person universally unethical. The point is to separate the ideas from the person presenting them, so that people can feel free to present novel ideas without fearing damage to their reputation if the ideas are unpopular.
Reminds me of a Kill the Poor sketch by Mitchell and Webb.