I strongly suspect one reason teams are trying not to cancel anything probably has to do with insurance coverage. I suspect (but do not know for certain) that sports teams almost certainly have some sort of coverage against financial losses caused by pandemics or similar events, but the policies most likely provide coverage for "involuntary" cancellations. Thus, the owners likely want to be "forced" to cancel, either by the government or by the league office. (Of course, the league office is theoretically controlled by the owners....)
They won't play a bunch if DHers. Theyll just shorten the season.
I did say "in theory."
