AG-
As you point out, the venerable Grob can only fly in VMC. Therefore by definition, UAS/JEFTS do indeed have their days messed up by cloud.
And whilst JJJ may currently be a lentil soup-eating student (note, only one "u" in student), thanks to flying pay in a few years time he'll be able to gorge himself on foie gras and quails eggs like the rest of us steely eyed aviators.
Finally- basket weaving essay banter from a geography graduate- do me a favour!