Yeah, but you can still talk to other hosts on the same link, not just the router, at any layer protocol. Link local addresses are not routable, but if you want to talk on the same network segment, that's fine.
Case in point, when I SSH from my laptop to my desktop using mDNS hostnames, I see “Last connection from: fe80::<something>”.
Case in point, when I SSH from my laptop to my desktop using mDNS hostnames, I see “Last connection from: fe80::<something>”.