I would love to see this implemented. I have some issues with things staying in sync because I’m using some of these switches without a local load, controlling just smart bulbs. When the bulbs get turned on via automations rather than from the switch, I can’t turn them back off at the switch. I’ve mitigated this as much as I can with rules in CoRE but it’s not perfect. Additionally, I can see having the single tap useful for a range of other activities if it were available.
Thanks for looking into this @Darwin!