Someone asking a question doesnt merit the insult of saying they "would never ask if they used a terminal." I have no particular dog in this fight, but not being a dick isn't that hard.
It may actually be the best now, but so were the 14 others that came before it. Your stated reasons are the same reasons as everyone agreeing to use any other standard. Consistency, predictability, automation,ease of backup/restore, etc.
What sets this standard apart from all the rest? Based on their own description, they aren't even an official standard, just one in "very active" use.
So why this, specifically? Just because its what you're already doing?
/etc is a standard, defined in the filesystem hierarchy standard. This is not:
Its nit-picking, but this is a specification, i.e a preference, not an official standard. It would be great if everyone would agree on just one of these to use, but that isn't a foregone conclusion. Even the actual standard, the FHS, isn't followed by popular OS's like NixOS.