Yea but you can't base the decision on those "what-ifs", no matter how frustratingly often they seem to happen.
It's not even a debate that disciplined zone (2-1-2) best suits this team's capabilities (size and length) and masks it deficiencies (unathletic, over-help / out of position). Yes, the "disciplined" part would be (and is) a huge challenge for these guys to execute. Yes, some teams would bomb away but you're better off playing the 3-pt odds than the layup odds.
Zone is the lesser of 2 evils and should be exclusive to give this team it's best strategic opportunity for success.