It's funny because that's kind of the definition of a vacation in my book. I find it weird that some places in the world handle it differently.
Note that it's also much better for the company in the long run: It's a test of resilience and redundany, the famous bus factor. It simulates what happens if someone is not available, and forces the organization around to have a backup plan. Having those is important for cases where employees leave the company or team (switching jobs/teams, accidents, sickness, parental leave, death, burnout, layoffs etc.). It's mind-boggling how many leads at various levels just don't understand that.