Eh, I think its a slippery slope to say “this class benefits from it more, so you should pass it to them”. I think its fine to roll on an item that is an upgrade for you, period. That said, if a gun drops and it has beneficial stats… its fair game for the melees to roll on it (and they will).
I think you did nothing wrong, but I think your mindset is wrong. Its not wrong for you to roll on stat upgrades. Its wrong to think that you need melee weapons. You don’t do damage with them, they are stat boosters, like armor. For a Hunter.
My line of reasoning is, at level 60 there are great stat boosting weapons that hunters need. To say they can’t roll on them at all if there is a melee class in the group is absurd. They need those pieces for the +agility they give and they have a right to roll on such things.
What you don’t want to do is roll on melee weapons that give strength.