That doesn't really solve anything. We already knew heavy walkers had to perform two Move actions to deploy. The issue is whether those two actions must be taken in the same round.
And this answer actually raises more issues than it solves. So now they're saying that even if the deployment zone is in the middle of the board, and the first move already puts the entire walker inside it, it somehow needs to perform a second Move action? That makes no sense and is not hinted at in the original rules at all.