We have to be very cautious here. For example, it's not enough to have a patch of forest that we're not cutting down now, moving that patch that we're not cutting down to another place, and then moving it again, meanwhile cutting down every one of those patches in succession. That does not make an old-growth forest.
It depends on what is meant exactly by using those habitats that are under protection. To really preserve a habitat we cannot have major impacts and hope it will rebound. Those habitats don't necessarily rebound. There are alternative stable states, and we can move them away.