good point of view, i have my own idea about this question and i will explain briefly:

Organized tournament are already live. There are bunch of central orgaization that give users a web-platform where to create and partecipate to some tournaments. This kind of platform are localized in countries where gambling (ex. poker online) is legal and has a good taxation, buuuut it must to have a regulare taxation.
With such a decentralized platform, there is no country of residence so they don't need to follow taxation regulatory of particular countries, allowing them to eventually set 0% tax on the prize pool for the players (this means 0 dividend to holders and 0 gains from the team and is not such a good idea), but even if is not a good idea to set 0%, we can set for sure a percentage that is much much more convenient to players.... so i thing medium players will choose a platform where on a 1vs1 match the can win almost 100% of what they bet and not just 80% or similar, like it happens nowadays.

Hope someone will share my opinion and eventually point a some error i made!!