Coming from a background where I wasn't taught a lot of the 'soft skills' that lead to making adult life easier - this shit matters more than many people want to admit. (Usually people who have benefitted from having them and are convinced it's just because they are fabulous they have done well).
Then there's always someone who comes along and says "I think they were more interested in my 1st from Oxford and Masters and billion A*s" - completely failing to see that most people are average.
If you are average, you will have two dozen other people who are equally qualified for every job /training contract you apply for. A 'silly' sounding name might not be enough to reject you if you are one of 2 people who can do a job, it might be easily if there's over 100 with similar backgrounds, qualifications and experience, and need to get the list down to 5 to interview.
If your application stands out suffiently on it's own merrit, then stuff like this doesn't matter. If you come from a family who have great connections that means the right person will be forwarding your CV to HR, or can line up work experience that others won't get access to, then it doesn't matter. If you are just a bit average, then stuff like this does matter.
Pretending it doesn't is unfair to people who are on the recieving end of the more subtle discimination. (And yes, any names that could be seen as 'black' are often discriminated against, even if those doing it wouldn't think they are being racist).