I read the article,. I did not see where they claim they have had an increase in customers. But, even if there was an increase, it would take a massive influx of new customers to cover the 50% plus increase in labor cost. This will not end well.
Not the link from here that’s just an biasedly edited down claptrap. The original NYT article discusses that they have lost some customers but have gained others etc etc.
The linked article is a warped filtered ideologue spin.