Like I said, it isn't really that amazing that an amateur was the one to photograph it first. There's thousands of more amateurs than there are professionals, and the amateurs of today can do what would have required a professional observatory 25 years ago. The thing that prevented the disk from being photographed before was that noone had been able to figure out how to block out the light from the parent star. That's an area where amateurs are on the same footing with professionals, and with the greater number of amateurs, its really not that surprising that an amateur would find it first.