I remember reading it somewhere when I went through a phase of being bothered about it not working.
If it is the case, I imagine that it pertains to a certain degree of lock rather than just being slightly off centre.
I would assume, and this is only just a guess, that it's just a safety measure to stop someone from forgetting they have, for an extreme example, one full turn on their wheel while sitting with the engine off, then setting off quickly from stop/start and the car suddenly veering unexpectedly.
Maybe test with yours to see. I would test in mine....if it worked.
I can see the sense in that!

