You can derive that from better data. From https://covidtracking.com/ https://covidtracking.com/ we can see that 57k people have been hospitalized in New York

You can derive that from better data. From https://covidtracking.com/ https://covidtracking.com/ we can see that 57k people have been hospitalized in New York State so far, with 15k still in the hospital. Of the 42k who aren't, 16k died[1], so we'd expect that about 5k of the people currently in the hospital won't be coming home (some of these statistics are pretty depressing). So two methods give us similar counts, matching up very closely with the separately measured CFR from way back in the original outbreak. That's pretty good back-of-the-envelope work. [1] this isn't quite right as not every fatality was a hospitalized case.