The only valid thing he said was that the format was bad. BR has always been welcoming, most of the foreigners that visit end up moving here due to hospitality.
Most of his criticism weren’t valid because they were the fault of Riot Global, The hot arena with no ventilation, overly strict security which meant everyone had to pay for inside food (which is an illegal practice in Brazil), There were also no Locker Rentals which meant people had to leave backpack at home or at the stadiums entrance, at a lot of the matches end, riot simply kicked out the crowd before the interviews and press.
ETC ETC
Take into account how uncomfortable the environment was, how expensive it was, how there were people who traveled by bus from other cities just to see the game, How riot global limited the ticket sales in the first days.
Take all that into account
And leaving the event before the crowning becomes reasonable, not going until the team your most enthusiastic about is playing becomes reasonable.
If you check the Twitch logs you will see several Brazilians rooting for different teams from home, because we don’t have the cash to pay for such expensive events. Hell I know a guy that went a whole month selling homemade chocolate in the street just to see Finals