I don't get your point. Are you trying to say that if a toll road shares a cross-section with a non-toll road then it isn't a toll road? If tagging `toll=` on roads that can't be accessed without paying a toll is "consequential mapping" (I don't know what you mean by this tbh), then what is `toll=` for?

> I see this way/799005738 is outside of tunnel area. Then, this section of Route 2 should be toll-free.

What does toll have to do with tunnel area? What if a non-tunnel has toll? Do we not tag `toll=` then?

> In the off chance traffic is temporarily redirected onto this section of Route 2 (e.g. traffic accident) they pay no tolls here.

Slippery slope: anything can happen, do we not do anything then? E.g. pedestrians and cyclists are allowed on roads they normally can't access during e.g. marathons and cyclothon, do we not tag access restrictions then? Roads can be closed to traffic entirely during traffic accidents so we shouldn't map roads? Buildings can burn down so we shouldn't map buildings?