I’m not holding my breath for there to be a “big sweep” regarding horse welfare across all sports. It would take an act of Congress to get something implemented that impacted all sports, but sadly animal welfare in general is far down the list of concerns for most Americans.
USEF is best positioned at the moment to do something regarding sports that fall under its umbrella, but we have seen that TPTB at USEF really only pay lip service to the issue of horse welfare. How long has it turned a blind eye to soring, to cutting/gingering of tails, to tie-downs (or tie-ups), to use of running W’s and other contraptions designed to make a horse trip unless it altered its gait mechanics, to instances of abuse/harsh methods used by riders at shows, etc.? Yeah, it can ban them at its competitions but as we have seen, that does nothing to prevent folks from using those methods when not on USEF-sanctioned premises. And don’t forget that AQHA doesn’t fall under USEF’s umbrella - and the reason reining had a very short stint as a USEF discipline is because those folks decided they didn’t want to subject themselves to USEF regulations over its sport (particularly in the area of dictating at what age horses could compete, but there were also concerns in reining ranks about what else USEF might dictate).