I think that is a brave decision. It means starting Kikau in the backrow and messing up our bench rotation that has worked so well. It also means playing a guy like Eisenhuth off the bench where he offers no impact (Unless you play Tago but I don't see that happening).
Eisenhuth starting is the best like for like replacement for Leota. He just needs to do a job nothing flash. It shouldn't be a big issue against Souffs pack.
It also means we don't fall behind early.
A pack of Fish, Eisenhuth, Martin, Capewell and Yeo is very basic.
TPJ and Leinu are already on the bench, No need to add more strike to it by benching Kikau
Sorensen will leave a huge hole as far as doing the clean up work once the bench guys come on, Martin or Eisenhuth off the bench can fill that gap