Of course it is, these form just a tiny subset of well known issues of PDF.
Here is a simple illustration of a copy & paste fail from this very page:
From html: a single sentence
> Since mozilla announced the sunsetting of pocket, I started looking for alternatives, including building a light version for my personal use. But nothing came out of my research.
From PDF: a newline split of a single sentence after light because PDF is generally too dumb to use sentences for text
> Since mozilla announced the sunsetting of pocket, I started looking for alternatives, including building a light
> version for my personal use. But nothing came out of my research.