This is the thing, it would probably solve the issue and the option is there with the Dock.
However, I've not had to do this on any other lens for Sony and it just doesn't leave me with a very comfortable feeling about the lens. Already in the back of my mind I'm questioning build quality and durability. First impressions mean count for a lot to me and I just think this issue is going to have me worrying about it. Sony's eye af box doesn't keep up in real time so I'm going to be constantly chimping if I don't trust the lens.
At £550 after cash back I still think its a great option at a relatively reasonable price. If truth be told I've probably just been spoilt be some top end lenses. I think it's great that samyang are here with these lens options. E mount Lens options are really broadening and if Tamron or sigma release a 70-200 f2. 8 I'll be dancing in the street.