TV types don't seem to do any research beyond their own opinions. I am sure there are some pundits etc who do, but the majority seem ignorant to footballers not playing in the Premier League.
Considering the salaries the BBC golf club are paid, their lack of knowledge beyond whoever is playing in the Prem at the time, is a disgrace. The commentators are less guilty - they clearly DO carry out a bit of research before matches, but the pundits are taking the piss.