Reason why Riot mix NA/BR/LATAM

I think because they want ''big viewership''. Have a league that have biggest teams in NA/BR/LATAM compete together will boost the viewership . This is only reason I can think about. This is not team vs team anm, more like region vs region every week

to chaotic in my opinion

That's why you have two L's in your username

They scared that SA and BR scenes couldn't reach 10 slots, rito stupid company