Please do not consider this comment to be commentary on the ongoing coronavirus outbreak, especially considering the situation at the nursing home in Washington state.
Out of curiosity, I tried to find examples where many people died of a flu outbreak in nursing homes. Here are some articles I found:
I guess one thing would be, this was likely the first acute care nursing home hit which may be closer to taking a random sample of what it would do to any given one (though community spread wasn't known about yet, and later ones may have rapid tests available to limit spread and enforce quarantine). Whereas those are probably the worst hit of many. This one seems to be possibly 20 or so of 140 as well (testing not done yet), but the 9/60 case would still be worse.
Out of curiosity, I tried to find examples where many people died of a flu outbreak in nursing homes. Here are some articles I found:
This article describes a nursing home in Sheffield where 9 of 60 residents died from the flu during the 1997--1998 season: https://pdfs.semanticscholar.org/e54b/27d527dd0612d0899f22ea...
This article describes a nursing home in Honolulu where 6 of 37 residents died from the flu during the 1989--1990 season: https://www.ncbi.nlm.nih.gov/pubmed/7657975
This article describes a nursing home in Los Angeles where 8 of 101 residents died from RSV in 1979: https://www.ncbi.nlm.nih.gov/pubmed/6527041
This article describes a nursing home in Devon where 4 of 50 residents died from RSV within one week: https://www.ncbi.nlm.nih.gov/pubmed/6736667