Because it is the nature of intelligent design to organize matter in such a way as to be intelligible, consistent, and functional, just they way the physical universe in my neighborhood happens to be.
You are attempting to argue that because a process "may" have occurred it is reasonable to believe that the process did occur.
No. I am attempting to argue that because a process "may" have occurred it is reasonable to believe that it may have occurred. Not only so, but intelligent design most certainly does occur, and every time it does, the result is organized matter that performs specific functions.