I've seen a lot of your posts.
Here's the problem. There's no such thing as a project where this is unavoidable. If he needs to abort his sequential tasks in the middle, the solution isn't to further muddy the architecture. It's to fix the architecture.
Most of your posts are trying to find a way to use tools poorly in the fear that helping them choose the correct tool won't go over well. You're not helping anyone when you do this. You're essentially saying "it's not recommended to use a hammer with your screw, but maybe if you use your left hand instead of your right it'll work alright?" That doesn't make sense. Don't advocate for bad design. Don't find workarounds for bad design and suggest the bad design can't be avoided. That's a terrible habit. Instead, show people the tools that are available that solve their problem. Not only is it possible to change the architecture here, it's REQUIRED. Pointing me to your other posts won't change this.
