The passage only seems a clear vindication to you because you approach the text with your own biased context and pull out a dubious inference when, again.. the Bible could have easily and clearly stated in no uncertain terms that abortion was wrong. Why leave such an important issue up to inference? You're seeing what you want to see. This is also a 'miraculous' pregnancy of a foretold prophet... fetuses also don't typically comprehend the words that are spoken to their mothers, yet this one did.. quite the special case. The NT makes no clarification on old Mosaic law in the OT that really show no major concern over a developing fetus.
The passage is quite clear to anyone who actually reads it. The fact that our limited medical and scientific knowledge of unborn humans has not yet proven that they can understand does not overrule the obvious facts. And as one who had my first child when most doctors incorrectly believed that newborns feel no pain, I've seen for myself how the medical knowledge of unborn humans has grown in the last 30 years. By the time we actually understand it, your position on abortion will appear absolutely barbaric. Obviously, the One Who created the child, and the growing process, understands way more than you.
Also, the Bible makes it quite clear that the verses do not apply to only prophets. Even in one of the oldest books, Job, the Bible says:
Job 31:13 If I did despise the cause of my manservant or of my maidservant, when they contended with me;
14 What then shall I do when God riseth up? and when he visiteth, what shall I answer him?
15 Did not he that made me in the womb make him? and did not one fashion us in the womb?
Perhaps, if you were not completely ignorant of the actual teachings in the Bible, and you did not rely on leftist websites that distort much and ignore what they don't like, you wouldn't have such a warped view of God...or what He says.