There's a lot of data capturing for the sake of it, and not using it or needing it going on online, and a lot of people are using the data verbatim and optimising for the wrong things, I see it all the time and honestly those businesses should just go out of business eventually

But I think it depends on the intent of the site, if you're selling online, like an eCommerce site, still benefit massively from some kind of analytics, and that data can be the difference between staying in business and going out of business. 

I don't see how analytics is any different from what we did in store watching what people took off the shelves, etc, when I did retail stuff.