The tag is present in Lintian version 2.104.328. That is the most recent version we know about.
The systemd service file refers to the obsolete BindTo= option.
BindTo= option has been deprecated in favour of
BindsTo= which should be used instead.
Please refer to https://github.com/systemd/systemd/commit/7f2cddae09fd2579ae24434df577bb5e5a157d86 for details.