There are numerous times you would need to put your turn signal on when the steering wheel isn’t perfectly straight. A three point turn for instance. Exiting a roundabout in some places, a curved residential road. Just because you fail to think of scenarios it applies in, doesn’t mean it doesn’t apply.
It’s cute how you’re hung up on my wording, and completely ignoring my three very real situations where your thumbs are very likely nowhere near their normal position.
Please tell me more about how I’m arguing dishonestly with what should have been obvious was a hyperbolic statement. 😉