I have no way of knowing, but I will say I'm already fatigued with comments claiming something is AI slop. It's only going to get worse.
You're so quick to be dismissive from a claim that they "tracked" something, when that could mean a lot of things. They clearly list some major issues directly after it, but yes fail to provide direct evidence that it's getting worse. I think the idea is that we will agree based on our own observations, which imo is reasonable enough.