When every company under the sun is pitching to you, trying to engage you on a personal level, it seems like it would become tired and old. Maybe there was a point when it was novel, but now everyone is doing it. As the level of advertising increases, it seems logical to me that engagement will decrease across the board. There's only so much a person can handle before they become saturated.
But what do I know? I don't use social media or willingly look at ads.