Nature and Gardening

Do you have an idea of how much root mass there is? Too few roots and too much plant can lead to very harsh transplant shock, and the plant will abandon leaves and stem to rebalance itself. Best practice is to remove top growth when dividing to prevent the plant from going through enough shock to kill it (I run a small plant nursery and do lots of divisions).

I'd recommend removing it from the pot and substrate to place in water for a day or two - leave it somewhere without direct sunlight to help promote root growth over shoot growth. This will also give you an opportunity to gauge how much root mass there is compared to the rest of the plant. If they seem about even, don't worry about cutting the stem back. If there's more shoot than root, cut the stem back just above one of the leaf nodes.

Not to go overboard (too late?) but "moisture control" can apply to potting mixes that are high porosity (fast draining, low moisture holding) or those that have chemical wetting agents that hold water long after you've last applied any. If the moisture control stuff you got is from miracle gro I'd recommend taking some aside, placing it in a pot, and testing how long a given amount of water keeps it wet while you're rehabilitating your plant. This will give you better information to set your watering routine once your plant is happier. If it holds too much water you can increase the porosity and draining potential by mixing in some all purpose sand (not playground sand, it's too fine)