I don't particularly disagree with your points

However, if you are a big merchant with thousands of clients paying or willing to pay with Bitcoin, you can either mass-hedge directly against price volatility (this will cost you around 1% yearly at max) or use third party services that specifically deal with this issue. Besides, we should keep in mind that with expansion of Bitcoin adoption volatility is set to taper off eventually as real value, which comes through such use, takes away from volatility just like speculative value adds to it