People who need hobbies! Someone to make comments about their breathing habits!
This appears to be a hobby so I would say they do not need one...
In all seriousness, aren't most pop songs written by committee* before the performer gets involved?
Would you prefer the committee to sing their own songs or the average singer composing their own songs?
I don't see much advantage in having the composer and the singer being the same person. I care about the final product.
The advantage is that the singer has an emotional connection to the words they write, they then emote those feelings through singing in hopes of eliciting an emotional response from you the listener.
When one person writes and the other sings, there is a passing from the writer to the singer of the emotion, this is less good then coming from the singer them selves but some good singers can interpreter the emotion from the writer or apply their own.
When lyrics are developed by committee there is no emotion just catch phrases and even the most talented singers would be hard pressed to put any emotion into it.
But why should we give ANYONE preference, other than the contractor that we believe will do the best job and provide the most value for the money? Even if we are "only" paying
Belief is the exact issue, many people have many different beliefs on what makes a contractor that will do just that and sadly many of those people making decisions are old white men that still believe (wrongly) that old white men are the only ones that can run a company. So in order to give other people a chance to get in the business and actually create some some competition we must make laws like this, it's sad but it is a reality.