That’s what Frank Zappa, legendary American muso and advocate for freedom of speech; self-education and the abolition of censorship; amongst other things; said. Now I wouldn’t claim to know anything about rock or journalism for that matter, but I can grasp the sentiment.
I’ve always believed that you cannot form an opinion about anything until you’ve actually experienced it or lived through it, with the exception of a few instances of course, such as suicide or death by lethal injection. However, even after you’ve experienced it, the way you interpret it is entirely up to the individual and so regardless of what you say or do or how (in this instance) you write, people in turn will form their own opinions about your interpretation of your experience.
In short you’re damned if you do and damned if you don’t. I say, just put it out there in any form or way that you choose. Whether you have an opinion about abortion, religion or in this case rock, it’s your voice, so use it.