Part of deeply loving someone is really knowing them, and you can't really know someone if they don't share their deepest fears, frustrations, and angers with you.
And part of a life is, hopefully, deeply loving someone.
(Of course, the advice in the article still holds -- your investors and customers don't and shouldn't deeply love you.)
People who love you care, to a point. In the limit case if you abuse alcohol and can't get your act together, your line of credit with your loved ones will run out (with parents being the one exception)
> And part of a life is, hopefully, deeply loving someone.
Hopefully is the key word here. One may or may not find a partner in life that shares their aspirations. The only person you're guaranteed is yourself.