Frank Sinatra is a complicated person. Generally his views were quite ahead of the time and surprisingly liberal. Support school integration in the 1950's was very ahead of its time.
It's interesting that such a famous public figure would make such statements, so antagonistic to organized religion, at that time. That Simply Wasn't Done in the early sixties, as far as I know (I was too young to be aware of such things). I wonder if there was, as Sinatra suggested might happen, a backlash after the interview was published.
Sounds more like rehashed trite observations.
Nothing deep or "decades ahead of his time" in them.
I totally agree that witch doctors, commercialized superstition, and spiritual hypocrites plague the realm of religion. But then again, plaguing the field of software, we have Microsoft, Apple, and other witch doctors. Does that mean that we should abandon the field of software? There is also linux, gnu, github and lots of other useful things, no?
Well, Linux, Gnu, etc are witch doctors too. Trust noone.