That's because dwarves, even dwarven bards, are terrible at subtext. Even when they might be embellishing, as he might be here.
===
As for the story, I suppose it isn't completely cut and dried. But I do wonder how much we might be jumping at shadows here. Just as it seems to pat to say it's completely 100% true, it seems a bit neat to presume that Hoskin is involved.
Not much to do but wait, I suppose.