Is the New York Times right that NYC stands alone in reopening schools?

The New York Times says:

Public school students in Chicago, the nation’s third-largest district, will begin the academic year remotely in September, leaving New York City as the only major school system in the country that will try to offer in-person classes when schools start this fall.…

Of the nation’s 25 largest school districts, only five now plan to open the school year with any form of in-person learning. Six of the seven largest will be online.

Wait, how can the New York Times say that NYC has "the only major school system in the country that will try to offer in-person classes," if 5 of "the nation’s 25 largest school districts" are going to have "in-person learning"? Don't the 25 largest school districts in the US all count as "major"? According to Wikipedia, each one has more than 100,000 students, and that list doesn't even include school districts as big as Denver, Austin, or Seattle.

More from the Times:

New York City schools, the nation’s largest district, are scheduled to reopen in about a month, with students having the option of attending in-person classes one to three days a week. But the city is confronting a torrent of logistical issues and political problems that could upend Mayor Bill de Blasio’s efforts to bring students back to classrooms.

Among them: There are not yet enough nurses to staff all city school buildings, and ventilation systems in aging buildings are in urgent need of upgrades. There may not even be enough teachers available to offer in-person instruction. Some teachers are threatening to stage a sickout.…

In other parts of the country where schools have already opened, they have quickly encountered positive cases, with some having to quarantine students and staff members and even close down schools temporarily to contain possible outbreaks.