A ban on implantation amounts to forced abortion. Obviously, discarding cloned embryos does not end a pregnancy, and is not abortion in that sense. But discarding embryos does end the life of human beings, and is abortion in that sense. To require such deaths by law would be new in this country, although the Chinese have had forced abortion for some years. Two wrongs don't make a right.
Many people argue that killing embryos is gravely evil.
Two wrongs do not make a right. Your proposal will make education and communication harder, not easier. One of the tasks of a national bioethics group, as you have discussed at several meetings, is to facilitate the national dialogue about bioethical issues. There is a great need for precise language, but it seems that you are planning to obfuscate the discussion quite deliberately. If you prevail, anyone who wishes to refer to Wilmut's new procedure will have to use some clumsy circumlocution.