Due to our very short lifespan, "thousands of years" seems like a big deal to us, but it's quite a short time to the earth. Forest recovery in a couple of thousand years would be "bouncing back" in that perspective.
Yes but people seem to expect recovery around the order of decades, not millennia.
Sure, from a deep time perspective it's maybe no big deal, but the loss of the forest affects all of us including future generations significantly in the meantime.