Asakiyume mita

--but who knows! Maybe some of them can.

At least one of them should be able to: Dorothy could. Dorothy eventually moves to Oz permanently, along with the people who comprise her home, so she doesn't even have to choose between them. If you don't take that into account in your modern portal fantasy remix, you have left out a major part of the tradition.

I gather from reviews that what people complain about with this story is actually that it veers away from the whole return-from-a-magical-land-will-mess-you-up premise to a thriller-murder-mystery (I think? I think that's what I've read), which is just plain abandoning any attempt to examine the premise (if that's what the story does in fact do)

That does seem like a very different sort of story.