This seems like a valid concern. Allow me to break it down into a point - counterpoint format and see if I can help dispel your concerns on the matter. As previously stated on this board;
A very well know quote, so let me try to counter it with another well know quote.
If it walks like a duck, quacks like a duck, and looks like a duck...
There is a rather large difference in not being educated in a specific matter, and that matter being "of the unknown". What we are talking about is the next logical step in progression. Our history if full of combining two things that we know works well, into one thing working much better. Without this progression, we would still be eating cold, uncooked meat tucked away in our cave and terrified of the noises we hear at night.