I like what you said on your blog, and I agree with it. That said, I think the most important, most critical piece was missed. That is, be kind to yourself, and find your heart. When a true crisis hits, one can be out of their head for awhile; out of their heart, out of their mind. Rational thinking, while lovely in theory, may not even be in the cards.
In some crises, you are terrified, and the flight, fight, or tend and befriend responses kick in. Your rational mind may be shut down. If the crises is strong enough, you may be traumatized, in which case you are working out of the limbic portion of your brain, where words and logic aren't even accessible. So all of the thinking in the world doesn't help.
While your advice is kind and reasonable for the kind of crises that rolls your world a bit without the deep, deep trauma; there are crises that turn one's world upside down. As a person who has lived through such crises, I can attest that one needs a strategy of the heart, rather than a strategy of the mind. It is during the time when the mind isn't in play, and thoughts aren't terribly helpful that the most help is needed -- when one is truly out of their mind from a change or event or a loss.
Reading Steven Levine might be helpful for you. He has worked with countless Vietnam Veterans and others who have survived deep trauma, and his approaches really help. Very Buddhist, in a western kind of way.
All the best, Belle,