Of all the types of stem cell research [ambilical cord, adult, and embryonic] -- only embryonic has been a total failure and is the only immoral one of the three.
I think God is sending a message there -- if the one that fails offends Him.
Ambilical uses the ambilical cord between the baby and the mother. At birth, the cord is discarded. It has the property that it must interact between the DNA of the mother and the DNA of the baby. It also must handle the blood type of both the baby and the mother.
I believe there is a lot of kickbacks on the embryonic stell cell because of the high failure rate and need for billions of dollars to be flushed down the toilet.
Adult stem cell has proven very inexpensive in terms of research trials -- which is bad news for research centers trying to find money to fund research [if that research is inexpensive and requires curtailing research moneys].
Stem cells remind me of the Garden of Paradise. God gave everything to Adam and Eve that they could possibly want, but the devil told them if they ate from the forbidden apple tree, they would be like God. They disobeyed God and look what happened.
With ADULT stem cells God is already giving us all kinds of cures. But man wants to "play g-d" and destroy life and clone life.