It's also considered cheating; Airsoft bbs don’t go though the many things that would not be considered cover in real life. So as the attacker it’s unfair that that noob could tag you on a lucky shot from behind that thin sheet of 'whatever'. Try learning some other tactics that "minimize" your exposer to the enemy such as snap shooting, "cutting the pie", and actually understanding the physical dynamics of tactical shooting/CQB, most importantly effective use of cover.
Do not rationalize blind firing as effective use of cover; this is just something noobs do, get it out of your head. Switch to a different tactic (assuming you have some)
It also potentially promotes the attacking side to cheating, "if you can’t see what you hit, you can’t see that its hit"
It also potentially aggravates the attacker if it’s obvious blind firing, when gets his sights on you, don’t expect him to be courteous with the rate of fire.
As far as remote aiming, that’s a different story, Cool project, but there is lots of things that could be created to keep the shooter from being hit but this is airsoft it hit or be hit "sport" and like I said above it has its reasons for being unfair. It is clearly stated in the rules for larger events about these types of devices, and I don’t think it will be ever adopted for Airsoft, maybe for scouting purposes only but never to give an unfair advantage in a firefight.
Also please do not responded about, how "in combat every advantage over your enemy is the goal". Or some thing like that, I'm just talking about airsoft here.