I suspect the opening titles suggest it is ASL day, not HoH day/month. We despair deaf or HoH support areas know who they are talking about. In publicising events for those with hearing loss, perhaps best they use that reference since ASL Day suggests NOT HoH at all, we would assume automatically it had nothing to do with HoH. The signing image is for signers, and using it in conjunction with a debateable dual remit only misleads people. We now await coverage which will be ALL ASL signed!
The UK doesn't have these days, so at least they are blatant about it being a celebration of deaf sign. HoH events here are about ear wax, hearing aid issues, and sign alternatives not much else.