We can point out the following pieces of information in the article about class warfare:
"It's not that we don't love our job. We wouldn't teach if we didn't. But most of us have had to take on second jobs just to pay the bills."
"The governing board refused to comment on the strike, furthering a stalemate between the two groups."
Animal Farm has very similar concepts as the ones extracted from the text.
The teachers could just as well be compared to Boxer the hardworking, but naive horse in George Orwell's Animal Farm. he is dedicated and loyal and work for love of his profession, but see his efforts are vain given that his life and work is not valued by the new government.
The governing board strike a strong resemblance with Napoleon, the leader of the farm, in the book Napoleon exhorts the other animals to fight and die for the good of the farm, he himself is a coward and a lazy one. The government body, seems to expect the teachers to work with low salaries, but certainly must have higher salaries and better working conditions.
Both in the article as well as in Animal Farm we see the result of government not taking care of workers and expecting results that cannot be reached due to the hardships of reality.