That's a real homie
it really isn't though, since at no point those men said it was by royal order + the men in armor explicated started in a thought bubble that the order was given by Varabus but "not under his name as royalty" = so it's not a royal order
however, Varabus may nevertheless hold a grudge and since he has many ressources both under his royal authority and outside of it, he could indeed try to harm the little lord's business, reputation or something else
*explicitly
additionally, helping a foreign lord (whether his identity is known or not) is not treason in itself if said lord isn't from an enemy country
Little Lord, oh little lord, you are going against your own kingdom's royalty in favour of a foreign kingdom's king.... that's almost treason