The ecosystem is highly "political" in the sense that there are new initiatives continously and all the actors try to act in their best interest.
You should try explaining the importance of a Nash equilibrium in Bitcoin, in that when everyone acts in their own selfish interests, it benefits BTC. What's most important about this is that for the system to become insecure, huge groups of people (the economic majority) need to simultaneously disregard their own interests and work on something which is bad for them (and if this happens, they would still feel that it is good for them, since it's what they want to do).
I like that you've written the blog like a conversation. It works almost like an FAQ but in a structured and easy to understand way.
Just because a bunch of people leave Bitcoin, which is what you are implying could happen, it doesn't mean that it would be "bad for them", as you put it. In reality, if a better coin comes around it would not make sense to continue with Bitcoin. Think about it. People want better technology.
Oh, I wrote another entry about changing technologies and how the giants of yesterday where challenged and sometimes obliterated.
