Along, possibly, with quite a few other Australian results of the time...
It's funny, you know - everyone always talks about Lillee, Marsh and Chappell retiring in the same Test... but what's easily overlooked is that this was only the start, not the entirity, of the cause of the problems. Soon after this, Hughes, Yallop, Wessels, Hogg and Alderman were all gone. Only one returned (and it's no coincidence that on his return he made the single biggest contribution to the series that turned the corner).
Along with the Packer Schism, Rebel tours really were a genuine scourge of cricket at that time. Substantially ruined what might have been a truly rich time.
Indeed, it'd be more accurate to say that had Apartheid never been conceived things would've been better still, as not only no Rebel tours, but no South Africa being kicked-out ITFP.