The problem with the argument is precisely that it has no logical force, but is nevertheless a necessary guiding principle for scientists.
On the converse someone disputing the ancestry of man amongst the lower apes; will invariably point to the lack of demonstrated intermediary stages (The missing link). The often used rejoinder to this and other similar proffered arguments is: "Absence of evidence is not evidence of absence!"
A proper resolution of these conflicting uses is a delicate task.
See also: Argument from silence; Lack of imagination