It is kind of obvious, and supported by economists who are the experts in this field, but the article dismisses it as bullshit without much proof.
It says differential pricing benefits no consumer, and yet, I managed to travel for way bellow cost. If it wasn't for dynamic pricing, I wouldn't have travelled at all. Of course, some people were price gouged, someone has to actually pay for these costs, but these people could afford it, otherwise they wouldn't be in.
The article then mentions overall price increases. Well, yes, sometimes prices increase, for good or bad reasons. Maybe the costs have increases, because there is a war somewhere or something, and the company has no choice but to increase the price to stay in business. Or maybe the company finds itself in a monopoly position and just wants to make more profit. In any case, the price would have increased, dynamic or not. And the solution is not to ban dynamic pricing, it is to avoid getting into wars for the first one, and break down monopolies for the second.
There is also the question of spying on people, but if you don't want spying on people, ban spying on people, dynamic pricing or not. You don't need to spy on people to do dynamic pricing, and many businesses who don't do dynamic pricing spy on their users.
Uber is given as an example, saying that they raised the prices and paid the drivers less. Well, of course they did, at the beginning they operated at a loss, this can't last, at some point they need to make profit. This, by the way, is one of the many shady things Uber has done, a company for which the entire business model is not to play by the rules. The problem is not price gouging now, it is that they were too cheap before, and yes, it is bad, because that's how you unfairly drive off the competition that can keep your prices (dynamic or not) in check later on.