If the doctors succeeded in getting an actual embryo that way, there would be a moral pickle. But this does not sound like son of Frankenstein. All they did was fiddle around with a skin cell in order to get a cell which is an exact mimic of one taken from some hapless embryo that would have had to be killed in the process of getting it.
I thought the success record of embryonic cells was still about zero, while adult cells were having some success.