What an interesting article though with an easy going and understandable examples. Yes ofcourse is the fact that BTC has gone through alot of ups and downs lately and still but that doesn't change the fact that it's the almighty when compared with other coins.The Lion is always the king of the jungle no matter what.
Comparing BTC with altcoins will be a misplace of value to an extent cause in no way can these altcoins withstand such pressures that BTC has and still standing strong. Not counting altcoins off though but their are seniority in the two when compared.
From your thought of view, I buy to such idea. Diversification is of essence in that one stands not to loose totally cause even if one fails, the advantage is already gotten from the other holding.
Thanks for this article, u made a meaning to me on this.