It has nothing to do with that, it's just bad design to have pattern image backgrounds that make text hard to read and add nothing.
There's a reason even small web pages don't look like this any more. Pages made like this were people seeing features and thinking they should use them without thinking about what they were doing. Go back as far as you want, professional pages never looked like this.
Even in the days of geocities it was only people's first web pages that looked like this. You could excuse people for learning to put a .gif in the background and then showing it off in the mid 90s. 30 years later there isn't any excuse.