The author is definitely conflating skill with original thinking. When talking about professional vs. amateur it's about skill. The skill comes about through ex

The author is definitely conflating skill with original thinking. When talking about professional vs. amateur it's about skill. The skill comes about through experience and purposeful learning. If we take skill to be a spectrum from high to low, the median for professionals is higher. (Of course, I'm strictly using anecdotal evidence.) But, there are still unskilled professionals as well as highly skilled amateurs. Original thinking is a bit trickier to understand. Both examples in the post use companies with vested interests in supporting their existing business models. Having a vested interest tends to "color" views towards ideas that disrupt the model. Of course, this provides opportunity for someone with at least a moderate skill level and a lot of ambition to branch a market.