I agree with every word of the author! Its value is only for speculative purposes. In a couple of years, everyone will understand that the ether is much more valuable and capitalization will show the truth.
The only thing I can say is that the op is hitting some good points, but that doesnt make Bitcoin useless. If you think Bitcoin is useless, then it is best for you to quit than disturb others who are still interested. Im not trying to say that we shouldnt remind ourselves of disadvantages, but this is an investment that we are into, if youre going to see it as something different, then youre making a mistake.