The issue is that there is no such thing as "the lowest price", it depends on supply and demand, and either can fluctuate drastically in short periods of time (

The issue is that there is no such thing as "the lowest price", it depends on supply and demand, and either can fluctuate drastically in short periods of time (i.e. surge pricing for uber). The manipulations the article mentions, that exist in all markets, are very rare.