In the grand scheme of things, he's just not that big of a deal.
Tonus, I think you're right.
When you at how little impact is being felt in the Org by the loss of AMIII now, maybe he was not as influential behind the scenes as it may have seemed at the time when he was making his bombastic talks at conventions and on JW Broadcasting.
There has been no schism, no outbreaks of dissent, no opposing voices in the ranks, or even any hints of major questions from within. On the one hand, this could be just because the Org is much more in control of messaging than ever before, but I think that if Morris had really been as influential in the hierarchy, there would still be at least some visible cracks or ripples left by his departure.
As it is, the Org is carrying on as if he never existed, and there appear to be no major impacts from his departure, in fact it may be quite the opposite: now he has gone, the GB is more united in a particular course of action and are accelerating the plans they had in mind all along - hence there being so many changes of various kinds in the past year.