I'll give my own alternate take on the Stones: as a long time fan of them, it's impossible to deny the quality of the music has dropped since probably at least Some Girls. Fact is, the Golden Age was Beggar's Banquet until Some Girls, with Mick Taylor being the biggest factor in that span despite not being on Beggar's Banquet and leaving following It's Only Rock N Roll.
The Stones had shifted into their degenerate and raunchy attitude right before Brian Jones's death, almost deliberately wanting to be the counter-Beatles and everything they represented. They had all but shaken their blues roots and steamed ahead into a down and dirty rock n roll band with a hardening edge to their sound. Even when Mick Taylor left, they kept that ball rolling with Ronnie Wood for Black and Blue and Some Girls but the cracks in that sound were starting even then. Chalk it up to Keith's sobriety from Heroin and ongoing charges for possession or even Mick Jagger's desire to be more Hollywood and his want to dabble into solo work: something had shifted heavily by the time of Emotional Rescue. With Tattoo You, that was the last grasp of a decent Stones album until Voodoo Lounge because the band was in turmoil, nearly broken up and Bill Wyman had exited right after Steel Wheels ( who was a massive loss)
But all that being said, the Stones in my opinion elevated themselves from being just rock icons into the rarest example of a rock institution. What they represent these days is longevity and an idea that somewhere, somehow: Rock N Roll can never really die. It might get stale, it might get stagnate but eventually it'll always come around and it'll keep going on infinitely. That is basically a description of The Stones themselves and they're career. Some of their music released in the last 20 years has actually been really good, such as "Don't Stop", "Doom and Gloom" "Rough Justice" "Angry". But are they spitting out hits left and right? No, but they are indeed 60 years in, so that gives them something of a pass or at least consideration.
However on the topic of going on without key personnel i.e Bill Wyman and Charlie? I personally don't like it, just as AC/DC has continued without Malcolm Young but, in fairness too, there are still key players left at the table that contributed to the music on a major level of importance. If it had become a deal like Lynyrd Skynyrd have become since the mid-2000s where you were down to one guy and now, NO original members? Then that's a whole lot different and a despicable cash grab in name-only. Foreigner is another band currently guilty of this