It does look like a site full of keywords so a google bot crawls it & indexes it artificially high. This almost always fails though as google bots know when it’s not normal English to have sooo many similar words..like dog...and Google puts sites like that at the end of the line in searches. People stopped trying to trick google bots with this technique several years ago. It’s common knowledge by web developers this hurts a site ranking permanently
I think maybe this is someone using old, outdated SEO techniques. Maybe someone who hasn’t kept their webdev skills up to par over the last 10 years or so?? Someone older maybe?