Yes. It is a post by the head of a small investment firm simply trying to align themselves with the halo of Charlie Munger.

Also this in particular is particularly ridiculous:

"It’s a fair bet that your present troubles pale in comparison. Whatever it is, get over it. Start over. He did it. You can, too."

First that's quite a bit of an assumption. After all divorce and a medical problem (like Charlie had) as well as a child dying IS something you can get over. There are people that for sure have much worse situations than that. But even if that was not the case it's never a good idea to frame someone's problems by comparing to something worse that someone got through.

You are upset that you have let's say diabetes? Oh get over it 'it's not cancer'.

You have cancer? Oh get over it it could be pancreatic cancer.

And so on.

Many problems you can't just 'get over'. (Addiction and mental health issues holding you back are just 2 examples)