That may be the case, technically. But there are quite a few Genesis tribute bands, and one of them is led by former member Steve Hackett. I saw a Genesis Revisited show by Hackett when he was in Stockholm a few years ago and it was a great experience, and I think I've managed to buy all live CDs he as issued during recent years. However, I definitely prefer the contemporary Genesis playing songs from their own past. In plain text Genesis in 2021 has three musicians who have been with the group for more than 50 years plus Daryl (40+ years). This means that when Genesis perform their songs there is the personal and emotional bond to these songs, that can't be achieved by putting together a tribute band. There's certainly nothing wrong when a solo artist performs songs from his former band, but it will always be a solo concert with things being a lot different than the mother band.
I agree, this isn't a tribute band, this is Genesis!
That's also why Ray Wilson failed, Tony was too stubborn back then, he told Darryl and Chester they were not wanted (Darryl was on tour with Phil at time of rehearsals anyhow) but I think he and Mike should have been more patient, waited to get Ray on board and write together and use a different name., because, it wasn't Genesis.
Tony at least admits to it now, he got it wrong.
It's a little sad, when Darryl says, he never felt like part of the band. Fans consider he and Chester a huge part of the group, even if they are not on the albums.