I agree the Ethereum graph does match the "stages of a bubble chart". However, I disagree with the timeline. I think it usually takes longer from "awareness phase" to "mania phase". There is no way Ethereum has went through that in less than a month. I think we are still at the awareness phase where a lot of people have just heard of Ethereum and are starting to invest into it as it's getting more media attention and publicity. This might be a slight correction on Ethereum price though.
This would match better if the price had gone parabolic. We are nowhere close to being parabolic in the classic "hockey stick" example. When so many alt-coins are reaching $100 prices, you'd need to see 10x, 50x or 100x movements in just a few days to qualify them as being in boom-bust cycles. IMHO.