Yeah, they are weird. (I still want that new Loki series. It looks good.)
I used to do that with FMA 2003, and still do somewhat. (Some of it I even came up with BEFORE the manga confirmed it, like the crossed bonds thing.) Like, in at least one of the Thor continuities, Loki has a sort of telepathy going on. I see no reason movie!Loki can't have the same. Just because it hasn't been explicitly said it's impossible, and they greatly increased his illusion and shapeshifting abilities in Thor 2, so it's perfectly possible that his powers go even beyond that.