Indeed. The page gives bad advise. If your config has `Host` blocks, like often in people's personal configs, or if you have a `Match` block, the new directive only applies to the last of those blocks in the config file.
Host *
UseRoaming noFor instance:
UseRoaming no
Host *
Blah yes
Test with: ssh -v remote.ssh.host.com uptime 2>&1 | grep -i roamingIf it returns nothing, the config fix is active. If it isn't active, you'll see 'debug1: Roaming not allowed by server'