I don't mind short shorts, with the qualifier that 3" inseam is what I consider short shorts and the shortest a person should go. I wear them and I'm in my 40s, so you know I don't come to this with a poison eye. I'm with you, though, no high heels and no tanks. Flats are mandatory. Tops for short shorts require a classic or preppy or boho top that is looser and has some coverage or a more modest cut. I'm classic to the core, as you know. Even with my short shorts, I don't think anyone has ever in my entire adult life looked at any outfit I've worn and thought "inappropriate."
So, with my weakness for short shorts confessed...I still say "nay" to the sequins and short shorts. Those are two dangerous, treading-the-cougar-path features colliding in one short. Actually three--the cut off hem instead of a hemmed hem too. Too much! Honestly, I'm not even a fan of the galaxy print ones. I think if you are going to go for an attention getting length, then you have to balance it with a non-attention-getting color or pattern. But again, I'm a classic dresser. If I was super fashionista trendy, it would be different. I'd prefer to stay way back from the edge of edgy with the short short trend versus go full on man-repeller or potential cougar-boundary-pusher.
ETA: Was thinking about how cute the galaxy print would look with a chambray shirt. I could see them as a yes now. Still not loving the sequined pair, though.