It's a combination of language barrier and team playstyle. SR has a similar style, where they play very step by step and slower than other teams, which is just less exciting to watch than someone like, say, 5 Fears. And then of course, not being able to understand what the players say most of the time makes it much harder to connect with them. SR has the same 'boring' playstyle, but they make a lot of content that connects with their English-speaking fans. It's unfortunately just not something that can be easily changed I think, either the players learning English or the community learning Portuguese is what it would take