Some potential buyers will view the G70 as a "personal car," primarily for occupancy by the driver alone or the dirver plus one passenger. I pretty much fall into that category. Others will want a car that can accommodate a couple of other adults for rides of moderate duration. I think my wife probably falls into that category. For folks like my wife, this will substantially reduce the car's appeal. If I decide to get one, I'll probably trade my wife's Outback and have her use my current (and newer) 2015
Infiniti QX50 as her daily drive. It isn't as roomy as the outback but has a decent-sized rear seat. That would relegate the G70 primarily to me, with her using it occasionally when she isn't going somewhere with more than one other person. For many, that usage pattern will be too restrictive and they might simply look for another car. Even for us, if my wife feels strongly that we should have a car that can more easily accommodate four passengers, the G70 may not make the cut.
It's unfortunate. It will reduce the potential market. Families, for example, may be concerned that, as teenage kids grow, it's going to get progressively less comfortable for them in that back seat.