Read the full article here: https://en.coin-turk.com/exploring-the-impact-of-bitcoin-halving-and-miners-on-market-dynamics/
To argue that cutting new supply in half doesn't impact the supply and demand curve is ignorant. Whether it happens instantly is an obvious question since no doubt there are plenty of people holding in anticipation of a jump in fiat price before taking a short term profit. Over a longer period the decrease in new supply of $30 million (or whatever) clearly will make a difference. Obviously other factors come into play, a huge number of them, but this isn't some new insight.