Like, if you’ve got a tight deadline coming up, it’s not the time to spend a week making CI slightly faster. On the other hand, if someone is telling you to not do work (right now), then they also need to help be responsible for finding time to do that work and understanding the impacts of that work never gets done.
I explain this to people as the tension between important urgent work. Some work is important but never(rarely) urgent. And if you ignore important work (like maintenance) it might become urgent at a very bad time.