Helper overriden method doesn't seem to trigger override violation

From !21447 (merged)

The bug fixed here was probably caused as b054a961 changed a method name from issuable_sort_icon_suffix to sort_direction_icon, but did not adopt this change in the EE code (isn't the :override supposed to prevent something like that?)

The helper in question is SortingHelper. Shouldn't EE::SortingHelper#issuable_sort_option_overrides have triggered an error when running bundle exec rake lint:static_verification ?