Yeah, see, this is the main thing I'm objecting to. Because this means that if I'm Archery 1 Stealth 5, I can alpha-strike people despite barely being able to use a bow. Hell, if I'm Archery 0 Stealth 5 I can do so. If I'm Dex 1, Dodge 0, Athletics 0, Awareness 5, I can barely walk in a straight line and yet am able to infallibly get out of the way of a crossbow bolt if it's fired at me from behind in the middle of an open field with no cover.
I much prefer the interpretation where, if you want to be able to shoot, you need to actually be able to shoot. Where if you want to be able to dodge, you need to actually be athletic. You can get around it to some extent by saying "well he hadn't set up to fire yet", but that only goes so far, especially if there's no cover nearby for you to dive behind. Abilities do things. Reducing the number of necessary rolls is a nice concept, but I don't think it's worth making Stealth do Archery or Melee things and Awareness do Dodge or Parry things.
If you want to reflect that you could cap Stealth at the attack ability rating but I don't see why you should in most scenarios.
Frankly, I think that if a completely untrained marksman gained complete surprise on even the world's best martial arts master they would be able to hit more reliably than a trained marksman trying to hit a running octergenarian.
Like, let's imagine two scenarios. I am standing behind a person with a handgun pointed at their head and they are unaware of me. In the other scenario a police officer is confronting a scared human being at hand to hand combat range.
Which of us do you think is more likely to hit on our first shot? The guy who has basically no training in firearms or the expert who is being actively resisted?
EDiT: And again, being Awareness 5 just means
you become aware of the attack. Not that you can dodge a crossbow bolt in a field with no cover. Here, let me be explicit with the mechanics.
Tick 0:
Sniper Mc Snipe: I attempt to ambush Mr Aware.
GM: Roll Stealth.
Sniper Mc Snipe: I rolled 2 successes on my Dex 4 Stealth 0.
Mr Aware: I have DV 3, you fail.
GM: Mr Aware you see Sniper Mc Snipe attempting to attack you, roll Join Battle.
Tick 1
Mr Aware: Thanks to my high Awareness, I win Join Battle!
GM: What do you do?
Mr Aware: What is there around?
GM: Nothing, this is a completely flat featureless grass plane which somehow Sniper Mc Snipe was able to conceal themselves on and attempt to ambush you somehow because that's a thing that happens on featureless grass planes.
Mr Aware: I, uh... run away screaming.
Tick it doesn't matter
Sniper Mc Snipe: I guess I fire my shot normally, I get 4 success on my Dex 4 Archery 4 roll.
Mr Aware: My DV is 0 because I have Dex 1 and Dodge 0 and took a Dash action to run across the featureless flat plane.
GM: You get hit. You are dead.