Does it matter if your PhD Certificate includes the topic of your research?

Sitting in a meeting recently I learned that University of Leicester PhD certificates do not include a title or descriptor of the research topic. Just PhD Leicester.
Looking at this from an employer perspective, one always wants evidence of what a candidate presents at selection. So whilst a CV may carry a descriptor of the research topic how can the employer be certain of what has been researched, or dare I say fully understand what has been researched?

Nowadays it is standard practice for employers to seek copies of degree certificates at Interview. Why? Because it presents evidence of the topic of the degree. For an employer this makes perfect sense.

On the other hand, PhD research topics under any title may very be very varied. So, would a title on a PhD certificate give an employer any meaningful information?
An interesting and important topic for discussion.