I guess in this case its because since he rolled a “set of 9s” for his dodging action, this is his initiative roll at the same time, and that would mean he just scored a high Ini, meaning he’ll go first next round… in which case, no need to conceal the head - probably better to keep your head up and be able to look around and check things out so you can decide on your action in a better informed way…
Although I’m not an expert on the system and it has been some time since I read it… but I remember this thing about the dicepool rolls, where “everything is supposed to be handled by one single roll” (hence the name One Roll Engine )
So, when you look for “sets” in your results of, say, 8d10 you just rolled, you may find stuff like three 4s, or two 8s. These sets are the interesting dice, all others can bcan just as well be discarded right then and there.
Now, the “width” of your set (=how many same-faced dice you have) determine the “power” of your attack (or maneuver or seduction or whatever you just did) - while the “height” (=how high the numbers of your set are) determine the “finesse or accuracy” of your action.
in combat this “height” doubles as hit locations: for example, 2x10 means you hit the head (very accurate blow). 3x10 or 4x10 signify even better (stronger, more forceful) hits to the head… while 4x2 is a really strong blow to the legs, and 2x7 might be a light hit on the torso…
This all seems rock solid (albeit sorta whack perhaps^^), but then there is this business with Initiative being rolled up into the same roll as well… So if I rolled 2x10 and you rolled 4x7, your hit would be stronger (and hit my torso [i presume]), but my hit would be faster, albeit not so strong (and it would hit your head).
My result gets resolved first in this case, and through various shennanigans (i.e. I can get to remove dice from your set(s)!) your hit may or may not happen after mine is resolved.
(armor however is a then flat modifier that gets subtracted from the damage whichs is determined by the diceroll iirc)
It really needs to be seen in practice I reckon…