Part of old school SEO – content position does matter, or at least it used to. Higher in the HTML was best.
There was an old trick you used to be able to do (which we employed a lot 10-15 years ago), was to place the text high in the HTML but use CSS to position it at the bottom of the page visually.
However I’ve found it doesn’t matter as much lately. Top or bottom – you can get pages positioned either way.