"Ironically, considering the use cases outlined above, the MacBook is really for power users -- people who have the latest tech (eg, a monitor with USB-PD), or who have gone to the trouble of setting up networked storage. But chances are, most of the folks purchasing a MacBook will be college students and average users who won't necessarily be equipped to work around the MacBook's portlessness."
I think that is a wrong assessment that this computer is for power users. This MacBook is the bottom entry level computer in Mac laptop line and it IS designed for students and average users. It is designed as a step up from the iPad, which only has one lightning port.
Don't let the price mislead you that this is a high end laptop (it isn't). The last time Apple had a white plastic MacBook, it sold for $899. This is part of that same line of laptops, but Apple added all this new technology in order to raise the bottom of their price bracket on the MacBook line. Expect the new tech in this MacBook to eventually make it to the other MacBooks and the prices to go in those accordingly.