I had a plugin to disable automatic updates. It was actice, I guess it didn't work. All my sites got updated.

I don't like that. I like to be there when the updates are done, What if the update breaks my theme or has a conflict with a plugin?

If I do the updates manually, and there is a conflict, I can change the plugin/theme or try to fix things.

By the way, why up to 72 hours? Wasn't it up to 24 hours last update or two ago?