That is not true. If my job is important and my systems are important, i'm on site to make sure that change is successful.
When I was with IBM, our policy was to open up a conference call and have all the requisite support staff on the call until the change window closed. You paid through the nose for that kind of support, but our downtime was minimal and some customers needed that.
When I am working in theater on critical systems in wartime, I don't sit in my fucking hooch and use automated tools. My ass is in front of the boxes in question to respond instantly. The alternative is broken tactical systems meaning bad information being used to make decisions meaning dead people.
Your slack attitude doesn't cut it in the places I work.