This is what Wikipedia reefers to as the "Other Stuff Exists" rule. That phrase means that just because other stuff exists that perhaps should not, is not a reason to postpone deleting things that do not meet standards.
This policy means that you will not be heard to argue that some other situation is worse, and therefore you should not be held to the rules. It means that each instance will be decided on its own merits, and what has or has not happened in any other instance is not relevant to the decision. It means that the policy enforcement mechanism is not a precedent-driven system.
This may or may not mean that policy enforcement is inconsistent, or even biased. More likely it means that there is simply no attempt to ensure detailed consistency in enforcement. It will mean that your views on the inconsistency or bias of the process will not be taken into account in a decision on whether your app violates the policy.