I can't agree more with you. There is nothing wrong to teach your children about your belief system. But they will eventually find their own way which is not always the same as yours.I think it's not all that great an idea. While I respect the thought process behind it, I'm of the opinion that we cannot control our children's destiny or their religious path.
Certainly, we can guide them and teach them what our beliefs are, but ultimately it is their decision. Naming your child after Biblical names does nothing to "brand" them with your particular beliefs.