Wait Kate, you are saying you "were astonished at how many of the jovi's there were" when in the past you've showed us pictures of some of the huge semp colonies grown under/at the foot of your trees in the (still yours?) nursery up north? Wish I could remember where your photos of that was posted, but you having "a lot of something" in your place is not a surprise to read about.
I would think a mound/bunch of Jovis falling apart would be a good thing for dividing to propagate/sell/trade etc.
Wish I could trade, but I have so little of everything. Glad to hear from you that you are still keeping busy with semps!