According to Jacob 5, the tree will continue to be pruned right up until the end - and I see that as a pruning of incorrect traditions and misunderstandings, not as a pruning of people. It doesn't make sense to me, in the actual context of the allegory, to make it about people. Therefore, anyone who assists in proper pruning, undertaken at a pace and in a way that doesn't damage the root, is part of the Restoration, in my opinion.
Pruning to maximize production can be tricky, as anyone
who has lived in orchard country knows (or even in application to
business organizations), so it generally can't be done through radical
surgery or, often, by removing every bit of infection all at once.
"Here a little, there a little" works far better in many cases. There
have been a few times in Church history when radical surgery was
necessary (ending polygamy and the Priesthood ban, for example), but
there was extensive collateral damage, as well. It was necessary, but
risk management includes minimizing damage and maximizing recovery - not
just eliminating infection.
That is a long-winded way of saying I
believe many who agitate, to varying degrees, are part of the
Restoration - while others (those who insist on too radical changes too
quickly) are part of the Destruction. I can't always know exactly where
that line lies, so I tend to err on the side of allowance and care - but if I
believe someone is firmly over the line, I don't mind the pruning shears
being taken away from them. Above all else, I believe in pruning my
own tree to the best of my ability and not insisting on pruning others'
trees for them or being in charge of the overall pruning of the orchard.
I'll express my views to the directors and managers of the orchard,
but I won't try to grab their shears and start pruning for them.