If bitcoin is going to grow 100x as many of you desire/predict, doesn't it make sense to develop a denomination now that reflects this future value?

It is easier to view a world where a coffee costs 500 coins instead of 0.000005 coins.  The latter is just nonsensical.

This author just ignores the network effect of the most popular cryptocurrency.  He assumes that each crypotocurrency is a good substitute for any other cryptocurrency.

By analogy, we can assume that the value of the US dollar will fall sharply soon because Vietnamese Dong is much "cheaper" to buy.