Taking the 'heroic' battle concept further as practiced in a game. Consider two scenarios:
In scenario 1, the 12 year old boy of a slain lord takes his father's best weapon, a finely crafted dwarven rifle equivalent to a snipers rifle from the Civil war. He lies in wait for his father's killer and puts a bullet through his head at 200 yards.
In scenario 2, we have the same basic situation but the best weapon is his father's bow. He can't string it yet so he takes his father's sword, also a nice weapon. He springs out of a hiding place at his father's killer, inflicts a minor wound with his clumsy blow and is rapidly dispatched.
I prefer scenario 2. I don't like firearms enabling non-combatants, or in game terms, low level types. I don't like the "color" of it, but I also don't like the arguments with my technically and historically savvy players about what can be achieved with firearms and what is a reasonable progression of the technology. Why bother? As a player, I don't l ike ignoring the effectiveness of firearms or their likely progression to enjoy the game. Given a choice, I'd choose a game without them.
That's a personal preference, of course. Some people can't stand fantasy RPGs, with or without firearms. Not going to tell them, they are "wrong."