I understand the first-glance surprise and outrage at a show pony with a huge list of meds. The L A Times did the same thing, complete with pictures of syringes, for race horses.
But if you know what you are doing/what all those do, it's a "meh." There's a legitimate issue with drugging horses for nefarious purposes out there. The blanket objection doesn't help those trying to make the rules better and more sensitive.