The important thing to note is that he is crying out for society to regulate the use of this technology, he's saying that scientists can't make these decisions on their own, they just see "an opportunity".
Are there any other scenarios that could raise ethical dilemmas?
I'm not sure whether we should try to make eggs from male iPS cells and vice versa. In theory, two men could use this technology to have a baby, because you could take skin cells and use them to make an egg. [...]
Who do you think should be responsible for deciding what is ethically acceptable?
These are very difficult decisions, and I think that society should make them. It should not be scientists. They can find it difficult to think like the person on the street, and instead may see it simply as a good opportunity. We scientists can be involved in the decision-making process, but I think unless society is comfortable with the therapy it should not go ahead.