Thanks for adding this! I refined it in https://www.openstreetmap.org/changeset/156419648 to indicate that there are both male and female toilets, but the changing table is only present in the female toilets not the male toilet.

I left this note in frustration as I was visiting Taiwan and had never experienced a changing table only existing the female toilets and not a communal area for both men and women. I navigated through the shopping centre following signage through to the changing table but ended up needing to change my baby on the floor outside the toilets. So the changing table was useless to me, but not unless to add into OSM and not useless to women.