Well, in this case, if one person says it does, and another doesn't see that it does, shouldn't the latter conclude they are likely missing something?

If I say 'this truck hauls 2 tons up Mount Rainier' and evidently I do that, and you don't think so, wouldn't the rational conclusion be that the truck does it and you were unaware?

I and many others, for centuries, have used etymology to understand meaning and history. Don't tell me it doesn't work - I do it, just like driving that truck. You can't do everything, we all miss out on most things, but you are missing out! :)