That's entirely the point of the linked article. TurboTax has lobbied to keep the system convoluted so they can sell you their software.
Countries with simple tax rules don't get to micromanage their economy so much.
Tax filing in US is a huge waste of people's time. I wonder if anyone ever computed the amount of people-hours spent on this malarky, and how much productive output it could generate if used for something else.
Although I guess it could be worse... I generally have extra taken out of my regular paycheck so I don't have to make quarterly payments. But it's just guesswork for the most part, as I just don't know where things will be precisely. Some years, I'm happy not owing anything, or at least much (I've owed the state a couple times), Other years I get more back than expected.