Neither of them cited an article, they both referred to one. I don't have enough information to reproduce that citation, but the remarks suggesting a set of facts had been "debunked" makes it clear there was an original article and discussion of it.

The District of Columbia and New York City are hit hard by the COVID Omicron variant, but in both places, ICU and ventilator use are down.

From the Wall Street Journal

At Northwell Health, New York state’s largest hospital network, about 10% of recent Covid-19 patients are ending up in the ICU compared with 25%-35% in previous surges, said Mangala Narasimhan, director of critical-care services.

Fully vaccinated patients are staying for an average of four days, Dr. Narasimhan said, compared with almost two weeks for unvaccinated patients. Patients are generally younger, and a greater share is white than during other surges, she said. Officials in the U.K. and South Africa have also reported lower rates of serious illness from Omicron than previous strains of the virus.

But the third big pandemic wave to hit New York is taxing healthcare providers, Dr. Narasimhan and other providers said. She said some colleagues quit in exhaustion. She ended up working over a planned vacation.