Upload & Sell: Off
A zoom lens can never replace primes whatever people might want to think.
Whatever you might want to think, you're not in a position to make that call for others. Too many factors go into each individual decision to make a generalization like yours even remotely accurate.
It's worse than that. retrofocus reviewed the lens based on the high-strength plastic in the barrel, without making any photos and definitely without giving it a proper test and discounting all the online tests and accumulated experience showing the new lens has fabulous image quality. Apparently the image quality doesn't count for him when comparing to primes. What's up with that?
I can imagine the 24-70 makes sense for wedding photographers. Being excited about it and selling good primes? No way! I had a look at the new 24-70 lens in a camera store recently, and there was nothing which excited me, in fact I was so glad that I have the old version of the lens which has a much better built style. The new one is "plastic fantastic"
Materials science has advanced tremendously while retrofocus was not looking. Nor does he know the construction or metal behind the plastic weight-reducing sheath.