There's a crucial social aspect of queuing that the article doesn't discuss - it makes you feel like a punter. It puts you in your place. And it's far worse when you're in a tiered situation - such as having to board a flight after business passengers, or being kept waiting outside a nightclub whilst some beautiful people are waived past the velvet rope. Perhaps the thing about walking through the airport isn't so much that it's less boring, it's that your social status is more anonymous. But as soon as you reach the carousel your true caste is revealed. Non-priority baggage. Economy traveller. Punter.
What most people fail to ever figure out is that this social-status hack (velvet-roped queues) has a lifespan.
In the nightclub industry, people understand this. They create artificial barriers to entry so that, when people get in, they spend loads of money "on the experience" because they feel lucky and perhaps a bit superstitious. It works for a few months and makes an enormous amount of money.
Two years later, some other club is hot and that one is a non-concern, full of "B&T" (bridge and tunnel, i.e. non-New Yorkers) and college kids on spring break. There's actually a lot of truth in the Yogi Berra quote: "That place is so crowded, no one goes there anymore." Once "the crowd" can get in, no one important wants to be there, and the $10,000-per-night people have moved on. A nightclubs has a lifespan. The owners and promoters put it into maintenance mode and start another one. This works extremely well for that industry. If you can sell a $30 bottle of vodka for $700, you've figured something out. Having to start a new club every 18 months isn't a major burden for the owners and promoters. It's the Hollywood model of starting a new project every year.
This works poorly for the airlines, which have infrastructural needs that require them to focus on the long term. The airlines play similar status games. There's economy which is deliberately uncomfortable, and first/business (first in domestic flight, business) which ought to be 1.5x the price (50% more space) but is between 1x and 5x depending on a bunch of weird variables, some of which are deliberately indexed to the person's socioeconomic status. You never get a good sense of what a ticket "should" cost because they deliberately keep it vague.
In the long run, this leads to abandon. Truly high-status people don't use commercial airlines anymore, not even international first. The rest will fly commercial but hate the experience, and would probably ditch the planes in a second if we had decent (250+ mph, 5-8 cents per mile) train service like they have in Europe. Morale in the industry is at an all-time low. As soon as credible alternatives to the mainline commercial airlines exist, they're done for.