Sorry but this just has an air of nepotism about it.
No doubt about the nepotism .... but ..... so what? It just means he cares about his son. And in the music business, nepotism really doesn't cause any harm I can think of.
Nepotism in Hollywood (which is rampant) can give us some really awful actor's kids ruining what could have been good movies. And the actor is so big that Hollywood will keep putting that kid in movies to mess up so they can keep the big fish happy.
Nepotism in the workplace (far less rampant) can give us some horrible people in positions that hurt so many people.
But in music, you create your own band, produce your own album and no matter how much daddy got you there, you will have to win over the fanbase on your own. Some may give them a chance that they wouldn't have otherwise, but they still have to like it to buy the 2nd album. And if they suck and keep making more albums, you can just ignore it. They are only screwing up their own albums.
And of course on the flipside, nepotism can lead to really great results because the kid was born into and soaked it all up when they were at the super sponge age.