I note from the article:
"Mr. Kaplow has tried everything he can think of to find workers, placing Craigslist ads, asking other franchisees for referrals, seeking to hire people from Subways that have closed."
it does not say anything about 'Mr. Kaplow has tried offering higher wages'. This relates to an older HN article - "Employers will do almost anything to hire workers, except pay them more" - https://news.ycombinator.com/item?id=17506044