OK, sure, but a few counterpoints:
1. The Bundesliga will be playing in mid-May. The EPL will be playing in mid-June. The likelihood of the NBA playing continues to go up. The NHL will likely have plenty of models to follow by June, and ultimately, the pressure of watching those other leagues compete and bring in cash.
The question is what happens if one of these leagues experiences an outbreak. What happens if, in all seriousness, Lebron James gets coronavirus and loses lung capacity that impacts the rest of his career? It's one thing to attempt the jump, it's another thing to stick the landing.
2. The 1918-1919 pandemic was far more severe for young people -- not that it's a contest, but it's a relevant data point. It targeted young healthy people in their primes, which the coronavirus does not.
It still puts people in their 30s in the hospital. The concern in this case is less about an actual death, more about a whole team getting slammed with the virus 2 weeks into a playoff. At that point you pretty much have to call the whole thing off, which sets a bunch of other unwanted dominoes in motion.
3. The 1919 Stanley Cup was played after the Canadiens took a cross-country train to Seattle, to play in front of full crowds, after the first wave of the Spanish flu had largely passed, in conditions that were 100 years more primitive than conditions now. Our ability to trace, isolate, and contain, with sufficient testing and a contained enough environment, is *far* better than it was then.
It takes one mistake. Just one.
(Also, the NHL "didn't decide a pandemic shouldn't stop the playoffs", and it wasn't cancelled halfway through the series -- it was literally cancelled 5 hours before what would have been the deciding game, and only because Montreal couldn't even ice a full team.)
I'm aware of the 1919 circumstances. We talk about Joe Hall dying, but very few people have heard of Hamby Shore -- the Ottawa Senator who also died of the flu in October. The NHL most definitely did make a conscious choice to go forward with its season once they felt the outbreak had peaked, then ran headlong into the next wave that occurred once everything re-opened. There was known to be an outbreak in the PNW, and again the NHL made a conscious choice to forge ahead with a playoff series at the epicenter of that outbreak.
The Spanish flu incubation period implies that the Habs most likely didn't pick up the virus on the cross-country train trip, but locally as they came into Seattle. Again, most people think about Joe Hall dying as if he was the only one who had to fight for his life. Their coach, George Kennedy, barely survived that week and actually
did end of dying of complications 2 years later. And while no definite link has ever been drawn, it is significant that Georges Vezina died of tuberculosis 4 years after that. Several other players were hospitalized or quarantined. It could have been worse.
This all boils down to a question of what the NHL is willing to risk in order to run its business. If this re-opening period leads to a resurgence, and that resurgence makes its way into a dressing room, we're talking about potential consequences ranging from a sudden halt to the entire operation, to career-altering impacts on the players, to 60-year-old coaches and trainers being at a very high risk of fatality. These are not abstract risks. In 1919 the NHL gambled with lives and lost. That's a long time ago, but a virus is a virus and it will not be more forgiving in 2020.