No it doesn't. It just forces you to use chat channels to find a buyer. That's it. People trade plat for krono so they don't have to spend real money to renew their subscription. Plus you can use kronos as a way to transfer plat between servers. Neither of those things would change if the bazaar limit were increased. Sure, it's a little more convenient to use krono as your main currency in the same way that platinum is more convenient than gold but that's a pretty small thing in comparison and doesn't improve if the limit was changed.