#4 The impact of the English language
We live in a world dominated by the English language. As of 2017, over 743 million people across the globe spoke English as a second language and over 378 million people spoke it as a first/native language. All in all, around 1.12 billion people knew how to speak English, and hence, it is the most popular language in the world.
From the two most heavily populated continents on the planet - Asia and Africa, most people would prefer to watch football matches with English commentary and analyses thanks to the extensive history of English colonization.
In addition to that, viewers from native English-speaking countries like Australia, New Zealand, USA and Canada would naturally prefer the same as well. Even though there usually is English commentary for other major European leagues, one would argue that the quality of live action English commentary and pre/ post-match analyses of other leagues is inferior in comparison to the Premier League.
This would be the case because the best commentators and pundits end up being booked to cover EPL games. This could further highlight why more people are drawn towards the Premier League as compared to the other major football leagues in the world.