Maybe the next version will have a thumbprint scanner so it knows who initiated the event. Maybe multiple buttons will be in a mesh network and send data about the other devices they're in contact with. I highly doubt we've seen the final feature set for IoT buttons.
But why would you deprecate the ability of a button to send a single event since that's what buttons do. Coordinating them in a mesh should be done outside of the device so it still works as a simple signaler.
