@SomeoneElse You didn't answer my questions, which were about the meaning of the word "passageway".
You know that forum discussions lead nowhere when there are different opinions. I see only 2 options to clear that up: Either the DWG decides who is right and who is wrong (which you obviously want to avoid), or by voting. The only valid way to initiate voting on globally used tags is via the standard proposal process. I hate to do all that work while those who started the edit war will have a good time on the beach, but that's how life is. If nobody would do the work, there would be no civilization.

@Woazboat: The tunnel=* tag in your example was set by an armchair mapper who had never been there. (Same as here.) The user is also infamous for connecting ways that shouldn't be connected. I think he gets paid for those validator "fixes", no matter whether they are right or wrong.