... My own conclusions are shared by huge BBs like Yates, Coleman and Oliva who sometimes prefer the advantages found with lever machines, Smith machines and cables over the weaknesses sometimes found with free weights...
I'm familiar with those quotes;
and only for two excersises,
legpress as an alternative for the squat, and leverrow for BOR,
and just for one fact only,
you can go heavy without hurting your lower back cause that's your weakest of your body.
Cable has the advantage of missing the dead point.
About yates, he used lever cause he snapped almost every muscle he had. And he still kept doing excersise like deadlift, BOR, bench-press.
Coleman and Smith

The have to design a new one. Olivia loved cable's as I recall.
And the all shared the same basics, barbells and dumbells. Don't look what's different, look what's the same

You simply cannot change a changing that's not been there for years, decade's or centuries,
it's been there for millenia.
If you believe that there better alternatives, I have to say that you're wrong,
levermachine tend to isolate the muscle to much, and that will alway's be a disadvantage. Even if you're using cable the small supporting muscles will not be trained.