So evolution boasts of consistent, natural process for millions of years, then pulls the rug out from under all history that may follow. Man, you can call that science if you want to, but I won't.
It's not evolution's fault that man doesn't understand the Earth well enough to know when the next major climactic change will occur (which is where most of the major speciation events seem to occur). Blame the astronomers and geologists.
If given one atom of a radioactive material, you can't predict with certainty whether or not it will decay in the next one million years either. Does that make quantum mechanics unscientific?
Do you really believe that consistent natural processes necessarily lead to predictable results?