In those matches they played good as a team, when the team fails Ebrar also fails so she is not a carrier, I think you are giving too much credit to Ebrar, she is a bit above average at best. Since she is OPP it is not surprising she is getting most of the MVPs.
I'm not saying she is the best Opp but I think she is the best in her team. Caterina Bosetti is having a terrible season. Both Carcases and McKenzie are very unstable. Also being Opp doesn't necessarily entitles a player to MVPs. I don't know if there's any statistics of MVPs based on position but as far as I see this season, it is quite diverse among position. Someone please correct me if there's such a stat I can find in legavolley website?