I find it strange that stopping advertising on some particular platform is a "big deal". It feels like it might have been so when ads were run in newspapers and

I find it strange that stopping advertising on some particular platform is a "big deal". It feels like it might have been so when ads were run in newspapers and on TV, but regularly adjusting your advertising strategy to be able to check its efficacy seems like common sense in today's internet advertising world. Given that the script for these companies is basically interchangeable among whichever internet platform, it probably takes a couple hours to spin up or spin down an ad campaign. Can't help but think that smart actors just use these events as cover / PR for evaluating their ad efficacy.