Because it's a legend that has real and interesting historical connections to the relationship between India and the West. I think that it's reasonable to assume that many readers here aren't familiar with the history and cultural exchange that influenced or led to these tales.
I'm loving the myth Buddha is depicted with curly hair from Greek style. And Stoic philosophy, developed in Greece and popular with Roman elite was developed from Buddhist teachings.
You can't reduce communication to simple rules like that. It depends on who is communicating what to whom and why.
For example, when a middle school kid has acne and another kid goes on about their face, that is not a neutral "describing the state of something". Everything they say may be facts, yet it is certainly a personal attack—and the more cruel, the more true it is.
I wouldn't personally frame this in terms of "the bar for what is offensive", with its overtones of "what you can't say" and all of that. It's rather that we want users to remain kind to each other, when talking about difficult things. The intention is not to exclude or suppress communication, but to enhance it.
Still, you're welcome to frame it in whatever way works for you. The point is that you need to follow the site guidelines if you want to continue posting here. If you'd please review them and take their spirit more to heart, we'd be grateful.
The scale of things aren't a wow factor. Just compare the scale of something to 10 years ago and that to 20 years ago. The growth rate would have been the same.