Right it's not about moving holidays its about planning them for a reasonable time if you have strong seasonality to your job.

If your job is some giant e-commerce retailer and you probably shouldn't take Black Friday or the week before Christmas off. If you work in accounting or some operations role then quarter end is likely bad. If you work in tax, then late March thru April probably bad. Etc.

There's plenty of time in the year to take off around whatever your jobs regular busy season is. Don't set yourself up for failure.