[general_re]

Just because we have little or no knowledge about the designer doesn't mean there wasn't one.

That, in and of itself, is not a particularly good reason to believe there was a designer...

[Frumious Bandersnatch]

That, in and of itself, is not a particularly good reason to believe there was a designer...

No, but taken in context it also puts the onus on those who reject ID out of hand.  Doing such an action is basing it on a belief that cannot be experimentally proven.  Thus believing that ID cannot be true is a philosophical argument - not a scientific one.