Gotcha thanksI asked myself the same question but didn't go further about it, my initial guess it would be that there are more sensible components "piled-up" on the right side that needs to be cooled with higher power, but I could be wrong and it's just for balance.
Regarding to blow your fans at max speeds, I would suggest not, it can help of course to act as that "mini air-blower" that I mentioned, but you would actually be sucking/moving more dust into the computer while doing this, don't get me wrong, in a almost-closed environment as the laptop is, the less the fans spin the better, cause it means no dust will actively go inside your computer and won't pile up among the blades or other components, that's one of the reasons the curves of these fans are set that way (also cause Apple likes to make computers quieter but not as colder as you'd like)
My 2 cents, forget about the dust, you can't fight it, be careful but not obsessive, trust me, it's a laptop and meant to be used on-the-way, if you see a real overheat problem, I'd check first fan malfunction than dust, but I'll leave Apple to do it if you feel unsure about it.
PS: Enjoy your computer!
edit: One useful thing you could do from time to time is brush your hole vents aiming to pull the dust out with soft-soft brushes while your computer is off, and being careful to do it slow to avoid any static charges
Wondering if I can ask apple to remove the dust during the 2 years legal warranty (i don't have apple care...should I take it for the 3 years ?)
I don't NEED the fans that terribly at the moment ,so perhaps I'd be better off waiting for the MBA M2 ...with no fans and cooler chip (a15 based and more E cores ) but then hey,i cannot rly wait that long anyway ...