Miss Manners or Ann Landers would know how to act in this situation. Maybe your private opinion is “meh” you just don’t state it publicly - out of basic human decency and respect m
When the singer of the Sex Pistols is more classy than a chum bucket like David Crosby, it speaks volumes.
You do what Dr. Laura would tell you to do.
Whenever you’re forced to be around or give opinions on people you may not particularly care for (such as family holidays, press interviews, etc), you be polite.
Not necessarily friendly or complimentary, just polite. Then you go in the other room and watch TV.
Even a “Meh” reaction to RnR HOF nominations and winners can cause outbursts even though there are so many more worthy and accurate contenders.