To me, the following reads like the writer is saying the entire supply is halved, and as a result we have volatility.
This choice of supply schedule has consequences. Because the supply is suddenly reduced by 50% overnight, it shocks the market. As demand remains unchanged, the price adjusts upward, as Bitcoin is now twice as scarce. The rapid price surge leads to a hype cycle, drawing media attention, attracting new adopters.
Is that intentionally misleading language to bolster their criticism? Am I overthinking this? Are readers to know he means new additional supply?