The article fails to make the case for why regular people would start using stablecoins for everyday transactions. It just assumes that they would. It's not clear to me what the advantage to the customers themselves would be.
Exactly, plus it's even harder if people have to deal with something they are unfamiliar with, i.e. stablecoins. This is why the stablecoin sandwich approach (with on/off ramps built in) are gaining popularity but those processes have their own costs, too.