For gardeners including eucalypts in their designs, studies like these can give small hints on why planting the wrong species of Eucalyptus right besides the walls of your house can pose a risk of future problems. But also hints of reasonably safe planting distances, which are not, as some propagate, dozens or hundreds of meters!
The problem then are not the Eucalyptus roots. The problem can arise, as usual, if planting the wrong species in the wrong place. Know your trees. And know your soils.