Whole things reads like someone leaving a cult.
It's ok to be sad about leaving a job but your identity shouldn't be so tied up in it that you're crying in a blog post online.
We all lose jobs and we all get on with it. Obviously they're talented and will land fine somewhere.
I'm not trying to be mean but it's bad that a person can get upset to this point around a job. The corp isn't caring.
Wouldn't you want to hire and nurture people who cared so much about what they were working on and who they worked with, as the author seemed to be?
(Not that you'd want them to be upset if it ever had to end, but you'd want the goodness part to happen? Better to have loved and lost, than never to have loved at all?)
From the companies perspective: absolutely! If I can get people who will put in 10x for 1x of pay, nothing like it!
From employees perspective: Care for your work like a good construction worker does. They don't cut corners, speak-up when they spot issues and put in their body and mind. But they don't come back to the site at 11PM to take one more look at it (I do sometimes because solving the programming problem is fun, not because my corporate overlords will pat me on the back). It is indeed important to make sure that the building is strong but remember that you don't own it.