Wouldn’t it be nice to have different routing mode settings on a WiFi WAN interface depening on the ESSID it is connected to?
E.g. to have a mobile unit connecting to available networks using DHCP and NAT in general, whilst when it’s connected in its home environment on a particular ESSID it connects using direct routing, making all LAN device directly reachable by the (allowed) nodes on the AP network for firmware updates and so on.