SuperSonicSound
Shadowmancer of the Shadow Cabal
I am in favour of Learning because I think Dwarfs can find a good Stewardship candidate - hell, Belegar can always assume direct control, he probably has some pretty serious Sterwardship chops - but they lack anyone nearly as capable in handling Weird Shit or going off on deep penetration scouting as Mathilde.
Kragg is our better in several respects, but not any which relate to gathering intel; plus he is probably departing home soon enough?
I kind of think you're wanting Mathilde to take up one of the martial adviser slots with that.