It's not ridiculous at all. You will do what the record label tells you to do, but in fact most band members won't care because of their age.

Many of the artists are young when they get famous. They do not care what the record producers do. As long as they get paid and play music that's all the care about.

Do you think a band member will care about a symbol here, another symbol there on their album? They won't care.

What do you think will happen if someone does make a fuss about a symbol. They signed the record contract and can't do nothing about it.

The band didn't even have any satanic symbolism before they got famous. It started after they signed on into the music industry. That's how it always happens.