[shrx]

People expect their router to act as a firewall too, via NAT. If you take this away and force people to buy an additional piece of hardware to restore the expected functionality, they won't switch. Simple as that.

[tsimionescu]

All modern NAT routers include a firewall. They don't "act as a firewall too, via NAT", they have both NAT and firewall functionality, even for IPv4. It has been like this for a long time now.

[throw0101c]

> All modern NAT routers include a firewall.

AFAICT the ER7212PC is not a "NAT router" but just a "router".

Even some switches have ACL functionality for the IP layer, but they're sold as switches and not as firewalls.

[shrx]

Sure, but people still use NAT as a way to secure their internal network, so it's effectively acting as a firewall.