That's just target practice though - in a real fight bob would be able to half dodge lots of incoming arrows (higher hit point total) than his son. 5E combat keeps accuracy bounded but has experience in combat dealt with by other mechanics.
I am not talking about survivability or lethality, I am talking about pure odds of hitting. That's all. With the sole exception of the SS feat removing disadvantage at long range (a feat that Bob might have and Tim might not), Bob has very little advantage (only +2) over his neophyte son despite likely years of experience.
I am also not saying I think it should still be a 1-1 level to bonus increase, but I do think bounded accuracy went too far in leveling the field between lower level characters and higher level ones. It goes back to the other philosophy of bounded accuracy: players will feel better if they hit more often even though since we gave pretty much every more hit points it takes just as long to bring it down.
The trade-off is simple: you hit less, but things have fewer hit points
OR you hit more, but things have more hit points. It takes just about as long either way... so other than trying to make someone "feel better" what was the point?
So, let's bound things, then hordes of weaker foes can still pose a threat to higher level characters... aha, right, sure, okay... *yawn*
Who plays that way? I'd be so annoyed with the DM if he threw 20-30 goblins at the party, which we would end up defeating anyway, and then we get so little XP it wasn't worth the hours the battle took. Why do you think we have tiered random encounter tables? Because by the time you get to tier 3, tier 1 monsters should be a joke. When I DM, I don't even bother with such encounters--game time is too valuable to waste on such meaningless engagements. I might story tell such an encounter if it is important to the plot, but I would hardly waste time playing it out.
The point is like Myzzrym said, going from a +1 to +20 spread to a +2 to +6 was way too much of a retraction. We currently use the +1 to +8 as a slight improvement because it doesn't necessitate revamping monsters that much really, but I would prefer the +2 to +12 option.
Anyway, I've ranted enough for now LOL. Whether you agree with me or not, I'm sure you get my point.
