good luck to that
As with most aerospace innovations, it's not down to luck but instead good engineering.
You probably ought to watch the last test flight before you comment again. The concept is sound, and SpaceX has succeeded pretty much across the board. It's not had a single failed launch attempt so far.
If recoverable they will spend more to re-unspect and validate hardware and components than it would cost to build a new vehicle and there would always be some elevated level of uncertainty that they captured everything.
Also, how would people feel about launching a billion dollar satellite or humans up the space station on hardware the had been thru the violent the event of a launch, recovery, re-inspection and rebuild?
I like the idea but these are expendable rockets.
Now if he had a fully capable single stage to orbit that was re-usable then yes that would be disruptive technology and change everything.