To choose science for one specialty but pseudo science or dogma for another is inconsistent. The scientific method has brought us both surgery and insight in how we came to be here and so on. It's hypocrisy to claim special knowledge about our origins absence any evidence, but to be happy with the fruits of all that labour when it suits you.
I prefer the (true) Mennonites in this respect, at least they are more or less consistent in their beliefs and their application of those beliefs. That doesn't make them less wrong, but they are at least not guilty of hypocrisy.
You can't be against evolution and against science at the same time, evolution is science, and science at its best.
Just like science put men on the moon and freed us from the shackles of the church it will occasionally cause a change of belief, either by replacing a wrong theory with a better one or by proving a widely held belief to be false.
The only reason the ID'ers try to make scientific type arguments is to sound more plausible when faced with scientific opposition, not because they've suddenly seen the light. And dazzling the masses with pseudo science is a great way of confusing the issue, right up to the claim that ID is just another 'theory' that should be given equal time in education.