The tag is present in Lintian version 2.104.318. That is the most recent version we know about.
debian/rules file appears to include a suspiciously
high number of
It is likely that is this was intended to optimise package builds by introducing "no-op" overrides that avoid specific debhelper commands.
However, whilst using overrides are not a problem per-se, such a list is usually subject to constant revision, prevents future debhelper versions fixing archive-wide problems, adds unnecessary noise/distraction for anyone reviewing the package, and increases the package's "bus factor". It is, in addition, aesthetically displeasing.
Furthermore, this is typically a premature optimisation. debhelper already includes optimizations to avoid running commands when unnecessary. If you find a debhelper command taking unnecessarily long when it has no work to do, please work with the debhelper developers to help debhelper skip that command in more circumstances, optimizing not only your package build but everyone else's as well.
Please remove the unnecessary overrides.