I'm sure you know numerous people who have died recently of covid.... In NY. This isn't march anymore, they have more treatments and fact is far less people are dying. Get real. Every infected person isn't dropping dead now like they were then.
In the last 3 weeks, 2 of my friends buried their fathers. No, this wasn't in NY. The point is, people still do die from Covid, and the more people we allow to get infected, the greater the chances are that some will die.
You don't need to look very far to see infections that have happened at simchos. No, it was not "just a few." There have been cases every week since Tisha B'Av, and there were cases before the 3 weeks, as well. The more this happens, the more likely it is that locals get infected (see
@Mikeoracle's frustrating personal account, and the resulting further spread within the local community). Dismissing it because we just can't be bothered is wrong, and I have yet to see any halachic basis for it.