Would to Bog I had karma points enough to downvote your dismissive comment. Really, couldn't you even read all the way through the article title? You know, where it says "... and I kind of suck"?
OP describes immersing himself in the details of a construction project, yielding to the temptations of total control. Micromanaging that project (atop the demands of family life) was a tremendous time-sink, and he lost focus on the Day Job - leading his company. He became detached, and his management style more autocratic and less consensus-driven.
He should have, he says, delegated or hired out much of the construction project work. Shepherding the company culture is a more important use of his time.
I found his introspective candor refreshing; not everyone is self-assured enough to admit a mistake.