Today is the end of sheloshim for my beloved husband

The mourning time is about actions, yes. But it's more about community. During the shiva a person does not work, and (if they want it) will receive many many visits from members of the community (even people they do not know personally). They can receive those visitors however they want, just as someone to talk to, people who can help, or simply as expressions of support.

People visiting someone during shiva are advised not to talk, but rather to listen. Or even simply to just be there without saying anything. If the mourner wants to talk they will, and if not they won't.

This type of community support is one of the ways Judaism has lasted so long in the face of so much persecution.

A quick google search reveals a bbc.co.uk news story about the death.

That's an interesting assertion, and itself worth examining critically. Is it generally good practice to critically examine any written piece? Possibly. Probably even. Is it always good practice? Perhaps even that is true. Is it always good practice to state the outcome of your critical examination in public? At this point, if your answer is still yes, we diverge. There's a time for stating your critical analysis, and a time for keeping it to yourself.

Death is one of those topics where critical analysis is generally unwelcome. To use a slightly extreme but actually fairly relevant analogy, if someone very close to you died and you were mourning them at their funeral a few days later, and someone there presents you with some kind of critical theory of the chemical nature of grief, while it might appear to be some critical analysis of the present moment it would nevertheless be most unwelcome.

Which brings me to your second point:

> In fact, my life wasn't changed or impacted in any profound sense after reading this. You should keep in mind that not everyone may think the same way as you, or even share the same reality.

There's nothing wrong with that, but I think you can tell fairly easily from the comments that other people were moved by this post. In some, it has brought up feelings of grief that they wished to share too. In effect, the original post by Sheryl Sandberg has made this thread a place of grief for many of the commenters here.

They will have come to it from many places, both real and imagined. For me it is imagining how I would feel if my wife died, or how she might feel if I died. For others it is remembering the death of a loved one. Either way, what they express is real and deeply felt.

I think this "promotes" this thread to a place of grief, and as a human being who respects other humans' right to such places, it is reasonable to keep your critical evaluations to yourself in such a place. There are other places to express your critical views of this. Yes, you have a right to express them here if you wish, but you should also be aware of the implicit request to let this space be what it is.

I know this is the internet and so expecting people to respect other people's feelings is somewhat extraordinary here, but I guess I have a high opinion of humanity in general.