The difference with EMEA than NA is how many nationalities there are. Its very easy for Americans to support 1 team and stick with that team and have rivalry with the others because they're all American. So there is that loyalty and rivalry.
The difference with EMEA is there are a lot of nationalities that aren't represented. You for instance have a Heretics flair. Why? unless you're fake flagging you have no ties to that team. They're spanish and have no Italian players. Which comes to my point, in EMEA I think people support the players waaay more than they support the teams. I have always been a Fnatic fan, I have that connection being British. Especially with Boaster being the face of that team for all of these years. I have also been a Liquid fan the entire time because they've had at least 1 British player every year, this year its Keiko. And I was never a Heretics fan until Benjyfishy. That's not to say I can't support a team that doesn't have a British player. I would still support Fnatic, and how much the rest of the Heretics and Liquid players have grown on me I would support them in the future too.
However there is still that loyalty and rivarly that you talk about with some of the EMEA fans. Specifically the Turkish, French and Spanish fans. They have that loyalty to the orgs and rivalry between them. But some can't have that loyalty because what do they have to connect them to an org? They don't, so the only thing they can connect to is the players or the coaches, who they see and their personalities shine through on stage. But players come and go, so ofc they're going to switch.
But that's just my opinion on why we want our strongest teams to go through. I honestly thought BBL were looking insane today and that they could be a top 3 team. But theres only 1 final spot and I'm supporting Liquid.