It's a safe bet that if you can't articulate the position you're arguing against, you don't understand it well. That could mean it's such a crazily dumb idea that you would never have thought of it, but it could also mean that they're much smarter than you.
For what it's worth, I have no idea what their plan is, either.
Here's the thing, if you have no idea what their plan is, is it your fault for not understanding it or their fault for not articulating it well? I submit the pgbot scenario provides a third alternative: people can't understand their plan because it makes no freaking business sense.
And whatever that original plan was, I'd bet the pitch didn't include a PowerPoint slide point along the lines of "Two months after we go public, the president leaves and sales really take off!"
For what it's worth, I have no idea what their plan is, either.