Other than the fact that my question was general and yours are specific, there's not any particular difference.
The question is still the same: is "science" capable of discerning whether or not intelligent agents are responsible for a given phenomenon. In cases where we know the answer is "yes," it should be possible to test for that.
Actually, no it isn't possible to test for that. You are essentially trying to prove a negative, that something could not have happened.
Even worse, without knowing the history of an object, you don't know what steps were required to produce it, and without knowing the steps, you cannot do a meaningful probability calculation.
No one in science claims that any complex structure poofed into existence in one step, and no one in ID has found a structure that isn't comprised of simpler, functional structures.