I certainly would not be surprised if there are some inaccuracies, but of the comments I've read so far suggesting that the numbers don't capture the truth appear to be misunderstanding what the data is showing (nationwide statutory paid time off and paid public holidays).

As an example, you mentioned the 7 paid federal holidays in the USA. But similar to some of the other observations in question, those aren't what this graphic is capturing. Outside of government jobs and maybe certain industries, those 7 public holidays are not required by statute on a nationwide level -- it's not even close to applying to everyone. Even if we agree that most jobs give people paid time off (but not because they are legally required to) or that some states require it, that's still not what this graphic is showing, so those don't make the 0 in any way inaccurate.