I can definitely see why what would be your interpretation of the end of the article, but I don't think that's what the author was trying to convey. Earlier on, under the "The first and biggest is wages" header, the author implies that the policies around tipping are a big part of the problem. But the reality is that there have long been efforts to end the practice of tipping in the US, and they have all failed. Even if there were to be a successful push to change the culture around it, it would take years, and his argument is about what is causing labor issues now.
His argument is addressed to Austinites and others in similar areas who want to enjoy activities like watching a movie in a theater, and are now finding it harder than it used to be. In summary:
1. In order to survive, lots of theaters have pivoted to models where employees serve food and drinks to customers sitting in the theater.
2. Because they're serving food this way, they can get tips.
3. Because they can get tips, their wage is $2.13 an hour.
4. At the start of the pandemic, a lot of people took early retirement, opening up a lot of higher-end jobs that had been unavailable previously, since Americans are retiring later, and high-end job growth does not scale linearly with the population. This means low-wage workers now have more options, and it's switched from an employer-favored job market to an employee-favored market.
5. Low-wage earners cannot afford to live in Austin. Workers at this theater were either teenage children of wealthy Austinites, or commuting from less expensive areas. If the job gets too bad, the teenagers can afford to just quit, and the commuters can find jobs closer to home.
6. On one day given as an example, the entire tip amount was $3.80. Since tips are split evenly, every worker got $3.80 in tips for the day. Assuming they worked 8 hour days, that means the employees making a base salary of $2.13/hour got a total of $2.61/hour, or a total of $20.84 for the day, with no healthcare. That doesn't even cover the commute expenses for the day.
7. Because of all of the above, there are few people willing to work at a movie theater, and when a movie theater can't even keep a skeleton crew on staff to keep it running, it will have to close down.
Therefore, if you are an Austinite who wants to continue going to movie theaters, you have only one immediate way to keep them open: tip generously.
You might think the other option is to go to a movie theater that doesn't serve food and drink this way, and thus must pay the minimum wage of $7.25 an hour. And this is more reasonable, but a total day's pay for a worker there will still be $58/day without healthcare. We're at the point where it covers the commute, but barely. The IRS estimates that commutes cost $0.56/mile in oil/gas/maintenance costs. For someone with a 30 mile commute each way, that's $33.60 in commute costs, leaving them with $24.40 for a day's work.
Raising wages would help, and the author did point out that companies that have been making higher profits than ever could afford it. Universal healthcare, affordable housing in the city, and more robust public transit could help, but those aren't coming any time soon. The only hope of getting a pre-pandemic theater experience in the short term is to tip so well that employees are making significantly more than the minimum wage, this attracting enough workers to a theater.
Even then, however, the author's point about customers being entitled assholes might still drive employees away. You could take tipping out of the equation entirely and most of the author's argument would still be true.