What it does show is that he is capable of avoiding a high-volume, multi-angular onslaught.
By running in a straight line without looking back to see the attacks coming? Looks more like luck to me.
And none of that affects Azula's output.
Aside from showing more power than Mako ever did?
I can see the images, but that's the problem: the still images don't actually show the full contact.
By full contact you mean hitting? Because some do while the others were dodged.
The pictures that make it look like he's aiming for the head HAVE to be wrong, because we know that head-shots are illegal for firebenders.
http://i.imgur.com/q13YZYA.jpg
http://i.imgur.com/lbhRrQS.jpg
http://i.imgur.com/L4lvKyI.jpg
http://i.imgur.com/eMAEc7Q.jpg
http://i.imgur.com/pSTFtzs.jpg
In these instances both dodged by moving their head down a little, if it was aimed at their torso it would hit their faces.
http://i.imgur.com/9g659Xd.jpg
http://i.imgur.com/ZB6udui.jpg
You can see the fire passing right next to his head.
http://i.imgur.com/HiRSd8M.jpg
http://i.imgur.com/qbQqgMS.png
http://i.imgur.com/fPtCJvk.jpg
http://i.imgur.com/L0R9OPd.jpg
http://i.imgur.com/wKVHnyL.jpg
Here it's the same, but this time it's Mako who dodges attacks that were clearly going for his head, so it's not just him. You can still see them right?
If it is illegal, then either the judge didn't care or they changed rules later, but it's clear that those hits were going for the head.
For the ones that look aimed at the feet, that's still not a knock against Mako's precision: if he's intentionally aiming for the feet, that's an accuracy issue, not a precision issue.
But you said all of them were aiming at the same spot.
I don't remember which fight from episode 2 it is now, but the one I'm thinking of has every single shot to the chest--which displays both high accuracy AND precision.
The fight i'm using in the images is the one Korra is cheering for them, the one you are talking about is the one Korra becomes a part of their team, wich i indeed watched and said it does happen the way you described it.
then we see Mako slice through the rock wall. I don't see Bolin doing anything to help with that.
http://i.imgur.com/B1MsK6n.jpg
http://i.imgur.com/kTP5LZU.jpg
http://i.imgur.com/3yro2zU.jpg
http://i.imgur.com/5Trr7VK.jpg
Bolin Comes punchin after Mako faile to break the rock wall, breaks it and prepares another attack.
Then we see Mako's fireblast take out Ghazan's other rock after Bolin's attack failed to do so.
http://i.imgur.com/gZK2aRp.jpg
http://i.imgur.com/oEq77ZY.jpg
http://i.imgur.com/7ZbMwAp.jpg
http://i.imgur.com/7Zq6gjo.png
Bolin's attack destroys the rock, Mako's attack send Gazhan back a step, then Bolin's other attack sends him flying. The only time Mako hits Ghazan's Defense alone is when he sends the rock back a little the first time he attacks, all the others he had a big help from Bolin to do any kind of damage.