Emma really isn't needed, especially now it's pre-recorded. Her presence just reminds you of the shit twists BBUK had in it's final years, and that seems to be her role here.
The Celebrity Circle is actually very watchable but it is really annoying they are twisting the vote process of what is still very much a fledgling series for every vote, especially when their standard process of the contestants voting for influencers and those influencers deciding who to block is one of the better eviction mechanisms in reality TV. A twist should be just that - an occassional change to the usual process. If you use a different process for every vote it isn't a twist, it's inconsistency.