You mean "Creates a lack of community" that you identify with. I don't want to sound ...well..un friendly, but android may not necessarily want to grow a community like that which you might be used to.
Also, I might ask, which communities of -developers- do you admire that you think that android should model on? A standard distribution?
The word community is nearly totally meaningless without describing what you mean, and more importantly in this context, why you think Android should have that kind of community.
From an intake persepctive, they've worked with, solicited and taken a variety of patches from a community of developers outside of google, but most of these come from developers within the handset, carrier and chipset 'community' more so than some unicorn developer community that everyone seems to have a flavor of in their head.