Does this discussion sound eerily like the 1990 discussion on forehands, openstanced or closed? Don't forget, there was a discussion then about exactly that, and open proved to work just fine.
Currently, most 2hbh's are hit with conti normal hand, and eForehand on the top hand. Eforehand traditionally are hit with closed stances, but Fed and some guys hit it well with neutral, closed, AND openstances.
Will 2hbh follow suit?
We're not talking about what is being done here, we're talking about whether the open stance will work in the future.
Remember that old Verdasco match where BudColliins kept saying that he, Verdasco, would hit a better sharp angle CC if he didn't close his stance so much?