There's a strain of thought going around that the IndieWeb is deliberately exclusionary. I don't know why, and I've tried to counter that kind of message when I see it, but it is only the deliberately part that I feel I can counter. With a couple of little exceptions, I see no evidence that barriers are being erected intentionally. I just see that the people who create the building blocks sometimes forget to put themselves in a less-knowledgeable user's shoes. Once that has been pointed out, as Eli did, they're quick to fix things.
Jeremy, when I first started using the IndieWeb plugins, I was initially frustrated and despite a technical background, felt at a loss in understanding what was going on. Several posts by Chris Aldrich helped get me past the frustrating stage but I admit that right now, all of this is very much a work in progress. It's not ready for the general public.