I think the usage model does need unique MAC addresses. Maybe not for everybody, but for a decent portion of their customer base.
For example, there are apartment buildings that provide WiFi for their residents. If two residents buy the same button, chaos would ensue if the two buttons had the same MAC address. For the personal care stuff, merely having multiple people using multiple bathrooms who all want magic buttons to order more would do it.
It sounds like the button only connects to the network when it needs to (which makes sense to preserve power) so you could get away with it much of the time, but if two people hit their duplicate buttons simultaneously you'd have trouble.
For example, there are apartment buildings that provide WiFi for their residents. If two residents buy the same button, chaos would ensue if the two buttons had the same MAC address. For the personal care stuff, merely having multiple people using multiple bathrooms who all want magic buttons to order more would do it.
It sounds like the button only connects to the network when it needs to (which makes sense to preserve power) so you could get away with it much of the time, but if two people hit their duplicate buttons simultaneously you'd have trouble.