Unconditional support of one's coach is something that's conditioned into and expected of football players and assistants throughout all levels of football. It's not at all surprising that a coach would come out in support of his head coach, especially if he really had no idea how deep it all went, which to me is an indication that Horny likely had no idea what was going on.
If there's any evidence at all that Horny was in any way associated with the awful situations, then I believe action and outcry would be warranted.
"Optics" are not something I particularly care about.
Rather, I care about the actual victims, and what can help them, and what can help prevent more victims. Would not hiring Horny have helped any of the real victims? Is it possible that hiring Horny will lead to rapes and cover-ups at Texas? I think the answer to both of those is "no" and that's as far as it should go.
Unless, of course, there's any actual evidence the Horny participated in what happened at Baylor. Then run him out on a rail, string him up, whatever.