When it comes to install and uninstall apps, the android manager does queue..and does better than many other platforms and os's..
For instance, the other day I was trying to help some girl install an app on her iphone 6(bare in mind that iphone people say that one is the best ever released..lol)..and her system wouldn't allow it because supposedly she had so many apps loaded already(which she never gave me the impression she did..so I was guessing she couldn't have that many)..
Now let me tell you something..my phone has never pull that kind of crap on me..I have about 80 third party applications loaded as I'm typing..including the several "system" bload trash I let survive that I barely allow them to breath for a minute or two..even further down, in IT'S 5th year is going even stronger than it was when just got IT..
So tell me..you still think android is a weak system??..lol.