It's not. Robocalls are one of those things that really upsets a small subset of people either because they are overly sensitive to robocalls or that they are a member of that unlucky subset that does receive a very high amount. Like most things in the social media era, the grievances of a very vocal minority appear to be a larger group than they actually are.

For example, the title of the article tells us that robocalls are "killing us".