So, this is kind of overblown. As @PhiNotPi mentioned, this is not major, or really ‘genetic engineering’ by any stretch. They’re not editing the genome, they’re replacing the mitochondrial genome.
Basically, we all have two genomes: nuclear, and mitochondrial. Both are important, but the nuclear is far more important, and generally what you think of when anyone talks about your ‘genome’. The mitochondria handle energy creation and regulation, certainly important and necessary, but hardly what you think of when talking about ‘designer babies’. And, again, there is no editing, this is a donation. You cannot pick and choose what genes you want, only what donor. While you can go about choosing the ‘best’ donor, it would have far less impact then a sperm or egg donor, which is currently a possibility for minimal fuss. Frankly, this only seems useful in the case they mention, where someone has a major genetic disease from the mitochondrial genome but would still like to have ‘their own’ children.
And this is all kind of moot, as a lot of the debate is whether it’s even to the stage of talking about yet, and it seems like it’s not.
Also, how they decided a rep from the Family Research Council should ever be taken seriously I have no idea. Even if they were a legit group, they already oppose IVF, which this would require. It would be like asking a Muslim if they’d like bacon.