Irie,
Well I've been cultivating Caapi for 4yrs or so, in optimum conditions.
It can certainly grow fast & as T says, can been overbearing for host trees.
My Alicia vine has just cracked it's mango tree host, in two!
The caapi has all but smothered an orange, cashew & A.peregina....
I tend to keep unknown plants in potting bags, until I've had a chance to evaluate it's invasiveness!
The Stigmaphyllon I have, spreads by root suckers. Which has proved to be quite an issue with the 4 vines that I put in the ground. I have several more that are still being retarded in pots....
For a plant that I have little or no knowledge of it's historical use for aya, I'm cautious to encourage it's propagation.
If you're thinking about growing your vine in the wild, it would be wise to choose a isolated micro-climate area?
As for cultivating it in the garden, I would definitely go for it and encourage friends to also cultivate it....
You can kinda keep control of it with heavy pruning (with a machete), and harvesting large growth, every 2-3yrs...
But you may end up like me with several sacks of dried shredded material!!

I now compost 80+% of my caapi!!!
Respect,
Z