Not that it doesn't work, it does, but a sharp stick still works as well as ever if the hunter knows how to use it. And I'd bet a sharp stick has taken more game than all cartridges combined over the last 10,000 years.
I like the round well enough and have several 30-30 rifles, but hearing how great it is gets old. It works, but ain't nothing special. The fact is it had been obsolete for 3 years before it was invented. It was a step backwards in cartridge development.
Most people don't really want the truth.
They just want constant reassurance that what they believe is the truth.