In T167908, we provided a configuration variable which allows the ORES UI to be disabled but the ORES backend will continue to function. In the likely event that we run into future situations where Ext:ORES is breaking some aspect of the UI, the suggested fix should be to disable the UI rather than the entire extension.
We need to check that this applies to the Special:Preferences hooks.
In a chat today, the Scoring Platform Team identified that the UI configuration variable is not well understood, and since it isn't present in InitialiseSettings.php, it isn't obvious how to use it. We should provide the variable in that file, and communicate to other developers and ops how it can be used in emergencies.