I have had many jabos that seem to be thriving dry up and die.
I believe it has to do with the soil becoming anaerobic. So even though the soil
is wet the tree cannot absorb water. I was reading some material and it said
by adding green compost to your soil it will keep the soil in balance.
In one of Adam's videos he mentions repotting jabos yearly and this also
could help keep the soil in balance. By keeping soil wet all the time it
makes the soil become anaerobic. Jabos love water in the right soil.
I remember being told by some expert - too long ago to remember who - that Jabos take a lot of water and flooding in the Amazon but it is
moving water, ie fully oxygenated. So I think you may be correct about keeping the soil aerobic.